This arrangement ensures that both partners share the workload and the profits equally.
In their dog walking business, Tom and Zara have decided to work together as partners. Whenever they walk a customer's dog, they do it together, combining their efforts to provide a quality service. This partnership allows them to share the workload, ensuring that the responsibilities are divided equally between them. By working together, they can efficiently handle multiple dogs and ensure the safety and well-being of the animals under their care.
In terms of the financial aspect, Tom and Zara have agreed to split the money they make equally. Regardless of who physically handles the payment or interacts with the customers, both partners receive an equal share of the earnings. This fair distribution of profits ensures that neither Tom nor Zara feels disadvantaged or unfairly compensated. By sharing the money equally, they maintain a cooperative and balanced business relationship, fostering trust and harmony in their partnership.
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Complete steps 2 and 3 to solve the system of equations.
y = 4x – 5,
The solution of the given system of equations is (2, -10).
The given system of equations is:
y = 4x - 5
We need to solve the system of equations given by
Step 1: We need to substitute
y = 4x - 5 into the second equation.
4x - y = 5 becomes
4x - (4x - 5) = 5
Simplifying the above equation will give us:-
y + 4x - 4x = 5 + 5y = -10
Hence, the solution of the given system of equations is
(x, y) = (2, -10).
Steps 2 and 3 to solve the system of equations are:
Step 2: Substitute
y = 4x - 5 into the second equation. This gives us:
4x - (4x - 5) = 5
Simplifying the above equation will give us:-
y + 4x - 4x = 5 + 5
Step 3: Solve the simplified equation to get the value of y.-
y = 10y = -10
Thus, the solution of the given system of equations is (2, -10).
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(2a) A cuboid has its length, width and height as 12cm, 6cm and 5cm respectively. Calculate its;(1) Surface area (2) length of diagonal (3) volume of the cuboid.
(2b) Given that the sides of a kite is 8cm and 6cm respectively. If its vertical diagonal is 5cm, calculate its area
The surface area of the cuboid is 324 cm2, the volume of the cuboid is 360 cm3. And the Area of kite = (5 × 6.403)/2 = 16.008 cm²2a)
Solution: Length of cuboid = l = 12cmWidth of cuboid = b = 6cmHeight of cuboid = h = 5cmSurface area of cuboid = 2 (lb + bh + lh)
By substituting the given values of l, b and h, we get:
Surface area of cuboid = 2 (12 × 6 + 6 × 5 + 12 × 5) = 2 (72 + 30 + 60) = 2 × 162 = 324 cm2∴ The surface area of the cuboid is 324 cm2.Length of diagonal of cuboid, d =√l2 + b2 + h2By substituting the given values of l, b and h, we get:d =√12² + 6² + 5²=√144 + 36 + 25=√205=14.317 cm (approx)∴
The length of diagonal of the cuboid is 14.317 cm.
Volume of cuboid = lbh
By substituting the given values of l, b and h, we get:
Volume of cuboid = 12 × 6 × 5 = 360 cm3∴
The volume of the cuboid is 360 cm3.
(2b) Calculation of the area of a kite when its sides are 8cm and 6cm, and its vertical diagonal is 5cm.Given, sides of the kite are 8cm and 6cm respectively. Vertical diagonal of kite = 5cmArea of kite = (Product of diagonals)/2By using Pythagoras theorem on a kite, we have:
Horizontal diagonal of kite, d =√(52 + 42)=√41 = 6.403 cm
Area of kite = (Product of diagonals)/2
By substituting the given values of vertical diagonal and horizontal diagonal, we get:
Area of kite = (5 × 6.403)/2 = 16.008 cm²2a)
Surface area of cuboid = 2 (lb + bh + lh)
Length of diagonal of cuboid, d =√l2 + b2 + h2Volume of cuboid = lbh2b) Area of kite = (Product of diagonals)/2.
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A rectangular box has width (x), length (5x - 1), and height (2x + 3). The area is 29,946 in. Find X
I need help please
To find the value of x in the given problem, we can start by calculating the area of the rectangular box. The area of a rectangular box is given by the formula A = 2lw + 2lh + 2wh, where l represents the length, w represents the width, and h represents the height. In this case, the area is given as 29,946 in².
The first step is to substitute the given values into the formula:
29,946 = 2(x)(5x - 1) + 2(x)(2x + 3) + 2(5x - 1)(2x + 3).
Next, we simplify the equation and distribute the terms:
29,946 = 2(5x² - x) + 2(2x² + 3x) + 2(10x² + 15x - 2x - 3).
After combining like terms, we have:
29,946 = 10x² - 2x + 4x² + 6x + 20x² + 30x - 4x - 6.
Combining similar terms further, we get:
29,946 = 34x² + 40x - 6.
Now, we can rearrange the equation and set it equal to zero:
34x² + 40x - 29,946 = 0.
To solve this quadratic equation, we can either factor it or use the quadratic formula. However, since the equation is not easily factorable, we can use the quadratic formula:
x = (-b ± √(b² - 4ac)) / (2a).
By substituting the values a = 34, b = 40, and c = -29,946 into the quadratic formula, we can find the two possible values of x. However, since we are looking for a real-world length, we can discard any negative or non-real solutions.
After solving the equation, we find that x is approximately equal to 24.4 or x ≈ -29.36. Since negative values are not meaningful in the context of length, we can conclude that the value of x for which the rectangular box has the given area of 29,946 in² is approximately 24.4 inches.
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Marty buys 12 ounces of granola marty paid $ how much for 3/4 of a pound of granola.
Marty bought 0.75 pounds of granola. If you have the price per pound, you can multiply it by 0.75 pounds to determine the cost of 3/4 of a pound of granola.
To find out how much Marty paid for 3/4 of a pound of granola, we need to convert 12 ounces to pounds.
Since 16 ounces make up 1 pound, we can divide 12 by 16 to convert it to pounds:
12 ounces / 16 ounces = 0.75 pounds
So, Marty bought 0.75 pounds of granola.
Now, to find out how much he paid for 3/4 of a pound of granola, we need to know the price per pound. Without that information, it is not possible to calculate the exact amount Marty paid.
If you have the price per pound, you can multiply it by 0.75 pounds to determine the cost of 3/4 of a pound of granola.
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A man uses a rod of length 5. 0m to lift a 700 kg marble. The fulcrum is 0. 50m from the end of the bar that is under the marble. Calculate the mechanical advantage and minimum effort required to lift the load. If the efficiency of this system is 90% determine it's velocity ratio
The velocity ratio of the system is 9. To calculate the mechanical advantage of the system, we can use the formula Mechanical Advantage (MA) = Length of Effort Arm / Length of Load Arm
In this case, the length of the effort arm is the distance from the fulcrum to the end of the bar that the man applies effort, which is 0.50m. The length of the load arm is the distance from the fulcrum to the marble, which is 5.0m - 0.50m = 4.50m.
Therefore, the mechanical advantage is:
MA = 0.50m / 4.50m = 1/9
The minimum effort required to lift the load can be calculated using the formula:
Effort = Load / MA
In this case, the load is the weight of the marble, which is 700 kg, and the mechanical advantage is 1/9.
Therefore, the minimum effort required is:
Effort = 700 kg / (1/9) = 6300 N
Now, let's calculate the velocity ratio. Efficiency is defined as the ratio of useful work output to the total work input. Since the efficiency is given as 90%, the efficiency can be expressed as:
Efficiency = (Useful Work Output / Total Work Input) * 100%
In this case, the useful work output is the work done in lifting the load, which is the weight of the marble multiplied by the height it is lifted. The total work input is the effort applied multiplied by the distance it moves.
Let's assume the marble is lifted vertically by a height h.
Useful Work Output = Weight of Marble * Height Lifted = 700 kg * g * h
Total Work Input = Effort * Distance Moved = 6300 N * h
Efficiency = (700 kg * g * h / (6300 N * h)) * 100% = (700 / 6300) * 100% = 11.11%
The velocity ratio can be calculated as the reciprocal of the efficiency:
Velocity Ratio = 1 / Efficiency = 1 / 0.1111 = 9
Therefore, the velocity ratio of the system is 9.
In summary, the mechanical advantage of the system is 1/9, the minimum effort required to lift the load is 6300 N, and the velocity ratio is 9.
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An 85kg man stands on a scale inside an elevator. What is the weight in Newtons that the scale reads when the elevator is
a. at rest?
b. moving upward at a constant speed of 5m/s?
c. moving downward at a constant speed of 8m/s?
d. moving with an upward acceleration of 3 m/s2
e. moving with a downward acceleration of 4 m/s2
The weight in Newtons that the scale reads when the elevator is in different scenarios can be calculated using the formula W = mg, where W = weight, m= mass, and g = the acceleration due to gravity.
a. When the elevator is at rest, there is no acceleration, so the weight will be equal to the gravitational force acting on the person. The weight can be calculated as W = mg, where m is the mass of the person (85 kg) and g is the acceleration due to gravity (approximately 9.8 m/s^2). Thus, the weight is W = 85 kg * 9.8 m/s^2.
b. the weight will remain the same as the gravitational force, which is calculated using the formula W = mg. c. The acceleration is still zero, and the weight will be the same as the gravitational force, calculated using the formula W = mg.
d. We need to consider the net force acting on the person. The net force will be the sum of the gravitational force and the force due to the acceleration. The weight can be calculated as W = mg + ma, where m is the mass of the person (85 kg), g is the acceleration due to gravity (approximately 9.8 m/s^2), and a is the upward acceleration (3 m/s^2).
e. We calculate the weight similarly to case d. The weight is W = mg + ma, where m is the mass of the person (85 kg), g is the acceleration due to gravity (approximately 9.8 m/s^2), and a is the downward acceleration (-4 m/s^2) since it acts in the opposite direction.
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The starting numbers for the patterns for x and y are shown in the table below.
The blanks in the table represent the next four terms for each of the patterns.
• The rule for the x-values is add 3.
•The rule for the y-values is add 6.
X
y
0
0
Which graph represents the ordered pairs of the first five terms of the patterns
from the table?
The graph that represents the ordered pairs of the first five terms of the patterns from the table is the line graph.
The graph that represents the ordered pairs of the first five terms of the patterns from the table is the **line graph**.
The x-values in the table are increasing by 3 each time, while the y-values are increasing by 6 each time. This means that the ordered pairs are forming a straight line. The line graph is the only graph that shows a straight line.
The other graphs are either curves or not straight lines. The **scatter plot** shows a cloud of points that are not evenly distributed. The **bar graph** shows a series of vertical bars that are not evenly spaced. The **histogram** shows a series of horizontal bars that are not evenly spaced.
Here is a table of the first five terms of the patterns from the table, along with the corresponding ordered pairs:
X | Y | Ordered Pair
-- | -- | --
0 | 0 | (0, 0)
3 | 6 | (3, 6)
6 | 12 | (6, 12)
9 | 18 | (9, 18)
12 | 24 | (12, 24)
As you can see, the ordered pairs form a straight line.
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Jordan's pet grooming business has a monthly cost function of C - $12p+ $2100. His Revenue is given by the function R - $62p, where Cis the total cost
per month, R is the total revenue he receives each month and x is the number of pets he grooms in a month. How many pets must he groom each month
to break even?
Jordan's pet grooming business has a monthly cost function of C - $12p+ $2100. The monthly cost function for Jordan's pet-grooming company is C - $12p+ $2100.
His Revenue is given by the function R - $62p, where C is the total costper month, R is the total revenue he receives each month and x is the number of pets he grooms in a month. We need to find out how many pets must he groom each month to break even.Let's set revenue equal to costs, and solve for p.R = C62p = 12p + 2100p = (12p + 2100) / 62p = 0.1935p ≈ 19.35 petsJordan must groom approximately 19.35 pets each month to break even. The nearest whole number is 19.
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Write log12 in four different ways. Name each you use and explain your process
The logarithm base 12 can be expressed as log12 or in exponential form as 12^x = y, where x is the exponent and y is the result.
The logarithm function is the inverse of exponentiation. It represents the exponent to which a given base (in this case, 12) must be raised to obtain a certain value. There are four different ways to express log12:
Logarithmic form: log12(y) - This notation indicates that the logarithm base 12 is being applied to a value y.
Exponential form: 12^x = y - In this form, the base 12 is raised to an exponent x to produce a value y.
Fractional exponent form: y^(1/12) - The fractional exponent represents the root of y with a base of 12. It is equivalent to log12(y).
Common logarithm form: log(y) / log(12) - If the logarithm base 12 function is not directly available, we can use the common logarithm (base 10) or any other logarithmic base and apply the change of base formula. The result is the logarithm of y divided by the logarithm of 12.
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The total salamander population on the island is represented by the expression 3,000 (1.035) t, where t is the time in years. what is the equivalent exponential expression rewritten to identify the weekly growth rate of the population?
A.) 3000(1.035⁵²)t
B.) 3000(1.035) t/⁵²
C.) 3000(1.035 ¹/⁵²)t
D.) 3000(1.035 ¹/⁵²)⁵²t
Answer:
The correct answer is:
C.) 3000(1.035^(1/52))^t
This expression represents the equivalent exponential expression that identifies the weekly growth rate of the population. The exponent 1/52 represents the conversion from years to weeks, as there are 52 weeks in a year.
Step-by-step explanation:
Las aspas de un ventilador de techo están girando alrededor de un eje fijo estas parten del reposo con aceleración angular constante en un tiempo están girando 10 revoluciones por segundo y dan 60 vueltas después Irán a 15 revoluciones por segundo
The question provides that the blades of a ceiling fan rotate around a fixed axis and begin to rotate with a constant angular acceleration such that they are rotating at 10 revolutions per second after a certain period of time.
After 60 turns, the fan will be rotating at 15 revolutions per second.
Solution:The given data is:Initial angular speed, ω₁ = 0 (since they start from rest)
Final angular speed, ω₂ = 15 revolutions/sec
Angular acceleration, α = constant
Number of revolutions for the first part, n₁ = 60
Number of revolutions for the second part, n₂ = (total revolutions) - (n₁) = (60 + 10) - 60 = 10 revolutions
Using the formula for the angular velocity, ω = ω₀ + αt
and the formula for the number of revolutions, n = ωt / 2π
We can find out the time required to reach a final speed of 15 rev/s as follows:15 = 0 + αt ⇒ t = 15 / α
The total time required to reach a speed of 15 rev/s would be the sum of the time required to reach a speed of 10 rev/s and the time required to reach 15 rev/s.t = t₁ + t₂ ⇒ t₂ = t - t₁
We can find the value of t₁ from the formula for the number of revolutions during the first part of the motion as follows:n₁ = ω₁t₁ / 2π0 = αt₁² / 2 + ω₁t₁ / 2π ⇒ t₁ = 0
Using the formula for the number of revolutions, we can find the value of t₂ as follows:n₂ = (ω₁t₂ + 1/2 αt₂²) / 2π ⇒ t₂ = 20/α
The value of α can be found by equating the two formulas for t₂ obtained above:
20/α = 15 / α + t₁⇒ α = 100 / 3 rad/s²
We can now substitute this value in the formulas for t and t₂ to find the times required to reach speeds of 10 and 15 rev/s respectively.t₁ = 0 s, t₂ = 60 / 3 = 20 s
Answer: The time required for the blades of the ceiling fan to rotate with a constant angular acceleration before rotating at 10 revolutions per second is 0 seconds and the time required to reach a speed of 15 revolutions per second is 20 seconds.
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Simplify this numerical expression using the order of operations. 5. 75 - 1 2 (20 ÷ 2. 5) ÷ 2 6 Order of Operations: 1. Evaluate within parentheses. 2. Evaluate exponents. 3. Multiply and divide from left to right. 4. Add and subtract from left to right. What is the value of the expression?.
The value of the given expression is approximately 71.31.
[tex]$$75 - 12(20 ÷ 2.5) ÷ 26$$[/tex]
The Order of Operations states that the sequence of steps in which we carry out the operations of a given problem.
So, we follow the Order of Operations to solve this expression.
Firstly, we will evaluate the parentheses:
[tex]$$20 ÷ 2.5 = 8$$[/tex]
Now, the given expression becomes:
[tex]$$75 - 12 × 8 ÷ 26$$[/tex]
Then, we will evaluate multiplication and division in order from left to right.
12 × 8 = 96
So, the given expression becomes:
[tex]$$75 - 96 ÷ 26$$[/tex]
Evaluating division, we get:
[tex]$$75 - 3.6923$$[/tex]
Now, we will add and subtract from left to right.
[tex]75 − 3.6923 ≈ 71.31[/tex]
Therefore, the value of the given expression is approximately 71.31.
So, the required is approximately 71.31.
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30% of the members of a tennis club are pensioners. 36 members are pensioners
a) how many members there in total ?
b) how many members are not pensioners
Answer
there's 120 members in total
84 not pensioners
Explaination
36÷30% = 120
70% are not pensioners
so 70% × 120 = 84
or you could minus the pensioners from the total 120-36=84
A one-kilogram cake is divided into 3 pieces whose weights are in the ratio 1:2:4. What is the weight of the second piece?
EXPLANATION ALONG WITH ANSWER NEEDED. Wrong answers and answers without explanation- will be reported.
Considering the ratio provided for cake pieces, the weight of the second piece of the cake is 2/7 kilograms.
Given that a one-kilogram cake is divided into 3 pieces whose weights are in the ratio 1:2:4.
We have to find the weight of the second piece.
Steps to find the weight of the second piece
Step 1: Let the three parts of the cake be x, 2x, and 4x respectively, where x is the weight of the first part of the cake.
Step 2: Find the total weight of the cake:
x + 2x + 4x = 7x
Total weight of cake = 7x
Total weight of cake = 1kg
Therefore,
7x = 1 kg
Or x = 1 / 7 kg.
Step 3: Find the weight of the second part of the cake (2x):
Weight of the second part of the cake = 2x
= 2 × (1 / 7)
= 2 / 7 kg.
Weight of the second part of the cake is 2/7 kilograms.
To conclude, the weight of the second piece of the cake is 2/7 kilograms.
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Let f(x)=−32x and g(x)=(12)x−1. Graph the functions on the same coordinate plane. What are the solutions to the equation f(x)=g(x) ? Enter your answers in the boxes. X = or x =.
The solutions to the equation f(x) = g(x) are x = 1/65. Hence, this is our final answer.
We have the following functions to graph:f(x)=−32x and g(x)=(12)x−1.Similarly, to graph the above functions we would require a table of values. For this we set x = −2, −1, 0, 1, 2 and solve for f(x) and g(x):x -2 -1 0 1 2f(x) 192 96 0 −32 −64g(x) 0.25 0.5 1 2 4Once we get the table of values, we can then graph the functions on the same coordinate plane.
We have the graph as below:Graph of f(x) = −32x and g(x) = (1/2)x−1Now to get the solutions to the equation f(x) = g(x), we equate the two expressions:−32x = (1/2)x−1Multiplying both sides by 2, we get:-64x = x - 1Collecting like terms, we get:-65x = -1Dividing both sides by -65, we get:x = 1/65
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Nadia has £5 to buy pencils and rulers. She says,
"I will buy 15 pencils. Then I will buy as many rulers as possible
With my change I will buy more pencils. "
How many pencils and how many rulers does she buy?
Nadia has £5 to buy pencils and rulers. She says,"I will buy 15 pencils. Then I will buy as many rulers as possible. With my change, I will buy more pencils.
"Let the price of each pencil be p and the price of each ruler be r. Presenting the above scenario into the equation,15p + (x × r) = 5Here, x is the number of rulers to be bought. To minimize the number of pencils Nadia will buy with the change, we have to calculate the maximum number of rulers she can buy with the given £5.Let's assume Nadia buys a maximum of y rulers with all of her money, thus the number of pencils she will be left to buy will be,15p + (y × r) ≤ 5Therefore, Nadia can purchase 15 pencils and 2 rulers with £5 as shown below,15p + (2 × r) = 5Nadia can then buy more pencils with the remaining money, which is,£5 − [(15 × p) + (2 × r)] = Remaining money£5 − [(15 × 0.20) + (2 × 0.35)] = 0.40Hence, Nadia can buy 2 rulers and 15 pencils. She can buy only 2 rulers as many rulers she can buy with £5 is only 2.
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Nicholas scoops a few gumballs into his bag. When he weighs it, he finds that he scooped 0.76 pounds.
Nicholas scooped a few gumballs into his bag and found that it weighed 0.76 pounds.
Nicholas's bag of gumballs weighs 0.76 pounds. This weight includes the combined mass of the gumballs and the bag itself. The weight measurement indicates the force exerted by the bag due to the gravitational pull of the Earth. To determine the weight of just the gumballs, Nicholas would need to subtract the weight of the bag from the total weight.
To find the weight of the bag, Nicholas could use a scale or balance to measure an empty bag of the same type. Once he knows the weight of the empty bag, he can subtract that weight from the total weight of the bag with the gumballs. The result will give him the weight of the gumballs alone.
It's important to note that the weight of the gumballs may vary depending on their size, density, and the material of the bag. Different types of gumballs may have different weights. To get an accurate measurement, Nicholas should use a precise weighing instrument and account for any external factors that could affect the weight, such as moisture or contaminants.
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A water pump can pump 13.2 gallons of water in a pool every minute how much water will be remove in 15 minutes
In 15 minutes, a water pump capable of pumping 13.2 gallons of water per minute will remove a total of 198 gallons of water from the pool.
If a water pump can pump 13.2 gallons of water in a pool every minute, we can calculate the amount of water it will remove in 15 minutes by multiplying the pumping rate by the duration. Therefore, 13.2 gallons/minute x 15 minutes = 198 gallons. During the 15-minute period, the water pump will continue to operate at a constant rate, removing water from the pool. Each minute, 13.2 gallons of water will be pumped out. When we multiply this rate by the duration of 15 minutes, we find that a total of 198 gallons of water will be removed from the pool. It's important to note that this calculation assumes a constant pumping rate without any interruptions or changes in efficiency.
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Which shows one way the equation can be represented in words? z minus 6 = 1. 4 The difference of a number and z is the same as one and four-tenths. A number subtracted from one and four-tenths is equal to six. Six less than a number is the same as one and four-tenths. Six decreased by a number is equal to one and four-tenths.
The correct representation of the equation "z minus 6 = 1.4" in words is "The difference of a number and z is the same as one and four-tenths."
The equation "z minus 6 = 1.4" can be represented in words as "The difference of a number and z is the same as one and four-tenths." This representation accurately conveys the meaning of the equation.
Let's break down the equation to understand its components. "z minus 6" represents the difference between the number z and 6. The equal sign indicates that this difference is equal to "1.4", which means one and four-tenths.
Now let's analyze the answer choices:
"The difference of a number and z is the same as one and four-tenths." This choice correctly represents the equation, expressing that the difference between a number and z is equal to 1.4.
"A number subtracted from one and four-tenths is equal to six." This choice represents a different equation, where a number is subtracted from 1.4, resulting in six. It does not match the original equation.
"Six less than a number is the same as one and four-tenths." This choice represents a different equation, where six is subtracted from a number, resulting in 1.4. It does not match the original equation.
"Six decreased by a number is equal to one and four-tenths." This choice represents a different equation, where six is decreased by a number, resulting in 1.4. It does not match the original equation.
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Gunther used 3 3/5 pints of blue paint and 2 1/10 pints of yellow paint to make a mural.
How many pints of blue paint and yellow paint did Gunther use in all?
Simplify your answer if needed.
Explain your thinking using 3-5 complete sentences.
To solve the given problem we have to add the quantities of blue and yellow paint that were used by Gunther to make the mural.We are given that:Gunther used 3 3/5 pints of blue paint and 2 1/10 pints of yellow paint to make a mural.To add these two quantities we need to find a common denominator.
Here, the common denominator is 10.As such, we have to convert the mixed numbers to improper fractions.3 3/5 = (3 × 5 + 3)/5 = 18/5 2 1/10 = (2 × 10 + 1)/10 = 21/10Now, we can add the two fractions to get the total amount of paint used:18/5 + 21/10 = (36 + 21)/10 = 57/10 Therefore, Gunther used a total of 57/10 pints of paint to make the mural.Now, let's simplify this answer.
We can simplify the fraction by dividing both the numerator and denominator by the greatest common factor of 57 and 10, which is 1.57/10 = 5.7Thus, Gunther used 5.7 pints of paint to make the mural.In conclusion, Gunther used 3 3/5 pints of blue paint and 2 1/10 pints of yellow paint, or a total of 5.7 pints of paint to make the mural.
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The mean score on a driving exam for a group of driver's education students is 76 points, with a standard deviation of 3points. Apply Chebychev's Theorem to the data using k=2. Interpret the results
Chebyshev's theorem states that for any distribution, regardless of its shape, at least (1 - 1/k^2) of the data will fall within k standard deviations from the mean.
In this case, the mean score on the driving exam is 76 points, with a standard deviation of 3 points. We are using k = 2, which means we want to see how much data falls within 2 standard deviations from the mean. Using Chebyshev's theorem, at least (1 - 1/2^2) = 1 - 1/4 = 3/4 = 75% of the data will fall within 2 standard deviations from the mean. Interpreting the results, we can say that at least 75% of the scores on the driving exam will fall within a range of 2 standard deviations from the mean of 76 points.
In this case, 2 standard deviations would be 2 * 3 = 6 points. So, we can expect that at least 75% of the scores will fall within the range of 76 ± 6 points, which is from 70 to 82 points.
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A scooter rental store charges a $4 rental fee plus $1. 50 for each hour a scooter is rented. What are the slope and y- intercept that represent this situation
Answer:
y = 1.5x + 4
The slope is 1.5, and the y-intercept is 4.
Prove that the line joining the midpoint of a median to a vertex of the triangle trisects
the side opposite the vertex considered.
The line joining the midpoint of a median to a vertex of a triangle trisects the side opposite the vertex considered.
Let's consider a triangle ABC with median AD and midpoint M of AD. We want to prove that line BM trisects the side AC at point N.
To prove this, we can use the following steps:
Draw line BM and extend it to meet side AC at point N.
Since M is the midpoint of AD, we have AM = MD.
By the midpoint theorem, we also know that BM is half of AD, so BM = MD.
Therefore, we have AM = MD = BM.
We also know that triangles ABM and NBC are similar by angle-angle similarity, since they share angle B and have angles ABD and CBN that are alternate interior angles.
This means that the corresponding sides are proportional, so we have: AB/BM = BN/NC AB/MD = BN/NC (substituting BM=MD)
Multiplying both sides by 2, we get: AB/AD = 2BN/NC
Since AD is a median, we know that AB/AD = 1/2.
Substituting this into equation from step 7, we get: 1/2 = 2BN/NC
Solving for BN, we get: BN = NC/2.
This shows that line BM trisects side AC at point N.
Therefore, we have proved that the line joining the midpoint of a median to a vertex of a triangle trisects the side opposite the vertex considered.
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The price of everything in the store is reduced by 1/4 each hour until closing time. Liz wants to purchase a shirt that was originally marked at 24$. You can use a function to describe the shirts price x hours after the sale starts.
If a bike wheel covers a total of 69. 08 inches
after one complete rotation,what is the approximate radius of the bike wheel?
The approximate radius of the bike wheel is 11.0 inches.
If a bike wheel covers a total of 69.08 inches after one complete rotation, we can use the formula for the circumference of a circle to find the approximate radius of the bike wheel.
Circumference = 2piradius
where pi is approximately 3.14.
We are given that the circumference is 69.08 inches, so we can plug in these values and solve for the radius:
69.08 = 23.14radius
Dividing both sides by 2*pi, we get:
radius = 69.08 / (2*3.14) ≈ 11.0 inches
Therefore, the approximate radius of the bike wheel is 11.0 inches.
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Wallace works at the Computer Wholesale Warehouse, where he develops visual impressions of products for advertisements and marketing materials. What type of work does Wallace perform
The required, Wallace performs graphic design work at the Computer Wholesale Warehouse.
Based on the description provided, Wallace performs visual design or graphic design work at the Computer Wholesale Warehouse. He develops visual impressions of products for advertisements and marketing materials. This involves creating visual elements, such as graphics, images, and layouts, to effectively convey messages and promote products.
Wallace's role at the Computer Wholesale Warehouse involves performing visual design work to create captivating visual impressions of products for advertisements and marketing materials, contributing to the overall effectiveness of their promotional efforts.
Thus, the required, Wallace performs graphic design work at the Computer Wholesale Warehouse.
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One link in a chain was made from a cylinder that has a radius of 2. 5 cm and a height of 22 cm. How much plastic coating would be needed to coat the surface of the chain link? Use
3 14 for TT
O2512 cm
O 314 cm?
O 345 4 cm
O 471 cm
The plastic coating would be needed to coat the surface of the chain is 345.4 cm². Hence option 3 is true.
A cylinder's surface area is the overall area or region that the shape's surface covers. A cylinder's total surface area comprises both the area of the curved surface and the area of the two flat surfaces since there are two flat surfaces and one curved surface.
The formula for a particular cylinder's total surface area is as follows:
TSA = 2πr (h + r)
Given that;
One link in a chain was made from a cylinder that has a radius of 2.5 cm and a height of 22 cm.
Hence, The plastic coating would be needed to coat the surface of the chain is,
2 × 3.14 × 2.5 × 22
= 345.4 cm²
So, The plastic coating would be needed to coat the surface of the chain is 345.4 cm². Hence option 3 is true.
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In the funtion f(x)=1/x which of these could be a value of f(x) when x is close to zero
In the function f(x) = 1/x, when x is close to zero, the value of f(x) approaches positive or negative infinity. As x approaches zero from the positive side (x → 0+).
The function f(x) = 1/x becomes increasingly large and approaches positive infinity. This is because dividing a positive number by a very small positive number yields a very large positive result.
On the other hand, as x approaches zero from the negative side (x → 0-), the function f(x) = 1/x also becomes increasingly large but in the negative direction, approaching negative infinity. Dividing a negative number by a very small negative number yields a very large negative result.
However, it is important to note that the function f(x) = 1/x is undefined at x = 0 since division by zero is undefined in mathematics. Therefore, we say that the function has a vertical asymptote at x = 0, meaning that the function gets arbitrarily close to positive or negative infinity as x approaches zero, but it never actually reaches zero. In conclusion, when x is close to zero in the function f(x) = 1/x, the value of f(x) could be positive or negative infinity depending on whether x approaches zero from the positive or negative side, respectively.
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find the side of the triangle if two of its sides are equal the third side is 1 1/3 cm longer than the others and its perimeter is 5 2/5cm
The lengths of the sides of the triangle are approximately:
The two equal sides: 61/45 cm
The third side: 1089/405 cm
Let's assume that the two equal sides of the triangle are represented by "x" cm each. According to the given information, the third side is 1 1/3 cm longer than the other two sides.
So, the length of the third side can be represented as "x + 1 1/3" cm.
The perimeter of a triangle is the sum of all its sides. In this case, the perimeter is given as 5 2/5 cm.
Using this information, we can write the equation:
2x + (x + 1 1/3) = 5 2/5
To solve this equation, let's convert the mixed number 1 1/3 to an improper fraction.
1 1/3 = (3× 1 + 1) / 3 = 4/3
Substituting the value, we have:
2x + (x + 4/3) = 5 2/5
To simplify the equation, let's convert the mixed number 5 2/5 to an improper fraction.
5 2/5 = (5 ×5 + 2) / 5 = 27/5
Now, the equation becomes:
2x + (x + 4/3) = 27/5
Combining like terms, we have:
3x + 4/3 = 27/5
To eliminate the fractions, let's multiply both sides of the equation by the least common multiple (LCM) of the denominators, which is 15:
15 × (3x + 4/3) = 15 ×(27/5)
45x + 20 = 81
Subtracting 20 from both sides:
45x = 61
Dividing both sides by 45:
x = 61/45
So, the value of x is 61/45 cm. This represents the length of the two equal sides of the triangle.
Now, to find the length of the third side, we substitute x back into the expression:
x + 1 1/3 = (61/45) + 4/3
To add these fractions, we need to find a common denominator. The LCM of 45 and 3 is 45:
[(61/45) × (3/3)] + (4/3) = (183/135) + (4/3)
Now, we can add the fractions:
(183/135) + (4/3) = (549/405) + (540/405) = 1089/405
So, the length of the third side is 1089/405 cm.
Therefore, the lengths of the sides of the triangle are approximately:
The two equal sides: 61/45 cm
The third side: 1089/405 cm
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what is the answer to this problem 2 ft 5 in + 9 in =
The problem requires adding two measurements in different units, 2 ft 5 in and 9 in. We need to determine the sum of these measurements.
To add the given measurements, we should first convert them to a consistent unit. In this case, we will convert everything to inches since the second measurement is already in inches.
1 foot is equal to 12 inches, so 2 ft is equal to 2 * 12 = 24 inches. Therefore, 2 ft 5 in can be written as 24 in + 5 in. Adding 24 in and 5 in, we get 29 in. Thus, the sum of 2 ft 5 in and 9 in is 29 inches. In conclusion, when we add 2 ft 5 in and 9 in, the result is 29 inches.
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