janine, Carrie and jay all buy the same type of ham from a supermarket. Janine buys 400g of ham for 2.56. Carrie buys 350g of ham. How much does she pay?

The expression that can be used to determine the total distance in miles Natalie jogged over these 3 nights is:

The model for finding the total distanceNatalie went on a jog 3 nights in a row and jogged the same distance each night.

The model for finding the total distance that Natalie jogged during the 3 nights is shown below:

Model for finding the total distance where each column represents one mile, and the shaded parts of each column represent the fraction of a mile that Natalie jogged each night.

From the model, we can find the total distance in miles Natalie jogged by counting the number of shaded parts in each column and then adding them together.

The number of shaded parts in each column represents the fraction of a mile that Natalie jogged each night.

Therefore, the expression that can be used to determine the total distance in miles Natalie jogged over these 3 nights is:

[tex]$$3 \cdot 1 + \frac{1}{2} + \frac{3}{4}$$ $$= 3 + \frac{2}{4} + \frac{3}{4}$$$$= 3 + \frac{5}{4}$$$$= \frac{12}{4} + \frac{5}{4}$$$$= \frac{17}{4}$$$$= \boxed{4\frac{1}{4}}\ miles$$[/tex]

Therefore, Natalie jogged a total distance of 4 and 1/4 miles over these three nights.

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The midpoint of the line segment connecting two points can be found by averaging their corresponding coordinates. Therefore, to obtain the midpoint of line BC, we add the coordinates of B and C and divide by 2.

Midpoint of line BC is given by:

\[\left(\frac{-1-3}{2},\frac{1-1}{2},\frac{2+0}{2}\right)=(-2,0,1)\]

The length of line AD is found by using the distance formula, which is given as:

\[d=\sqrt{(x_2-x_1)^2+(y_2-y_1)^2+(z_2-z_1)^2}\]

Thus, we need to find the coordinates of point D and A to determine the length of AD. The coordinates of D are the average of the coordinates of B and C.

\[\left(\frac{-1-3}{2},\frac{1-1}{2},\frac{2+0}{2}\right)=(-2,0,1)\]The coordinates of A are (1,2,-1).

The distance between A and D is found by substituting these values into the distance formula:

\[d=\sqrt{(x_2-x_1)^2+(y_2-y_1)^2+(z_2-z_1)^2}\] \[d=\sqrt{(1-(-2))^2+(2-0)^2+(-1-1)^2}\] \[d=\sqrt{(3)^2+(2)^2+(-2)^2}\] \[d=\sqrt{9+4+4}\] \[d=\sqrt{17}\]

Thus, the distance between points A and D is sqrt(17).Therefore, the midpoint of line BC is (-2,0,1) and the distance between points A and D is sqrt(17).

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To determine the percentage of shots that the goalie saved, we need the actual numbers of saves and goals scored against the goalie. Since the specific values are not provided in the question, it is not possible to calculate the exact percentage.

However, I can explain the general process for calculating the percentage of savings.

To find the percentage of saves, we need to divide the number of saves by the total number of shots and then multiply by 100. The formula for calculating the percentage is:

Percentage of saves = (Number of saves / Total number of shots) * 100

For example, if the goalie made 30 saves out of 40 total shots, the calculation would be:

Percentage of saves = (30 / 40) * 100 = 75%

In this case, the goalie saved 75% of the shots.

Without the specific values of saves and shots, it is not possible to determine the exact percentage.

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Given that Aaron ate half as much pizza as David and Aaron ate 1/4 of a pie, we can determine the fraction of the pie David ate by setting up an equation and solving for it.

Let's assume that David ate x amount of pizza, which represents the fraction of the pie he consumed. Since Aaron ate half as much pizza as David, we can express Aaron's portion as (1/2)x. We are also given that Aaron ate 1/4 of a pie, so we can set up the equation:

(1/2)x = 1/4

To solve for x, we can multiply both sides of the equation by 2 to eliminate the fraction:

2 * (1/2)x = 2 * (1/4)

x = 1/2

Therefore, David ate 1/2 of the pie. This means that Aaron ate half as much pizza as David, while David consumed the remaining half of the pie.

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After reducing the price by 12%, the price of the car would be $2,376. To find the price of the car after a 12% reduction, we can calculate 12% of the original price and subtract it from the original price.  

To find the price of the car after the 12% reduction, we need to calculate 12% of $2,700 and subtract that amount from the original price. First, we find 12% of $2,700 by multiplying 0.12 (12% expressed as a decimal) by $2,700:

12% of $2,700 = 0.12 * $2,700 = $324

Next, we subtract $324 from the original price of $2,700:

$2,700 - $324 = $2,376

Therefore, after the 12% reduction, the price of the car would be $2,376. This reduction reflects a decrease in price from the original value, providing potential buyers with a discounted price for the car.

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To find the mean and standard deviation of the distribution of excess cleaning solution, we need to calculate the difference between the advertised amount of cleaning solution and the actual amount filled in the bottles.

1 fluid ounce (1 fl oz) is approximately equal to 30 milliliters (30 mL), so we can convert the measurements to milliliters for consistency.

Mean:

The mean of the distribution of excess cleaning solution can be calculated as the difference between the mean amount of filling (33 fl oz) and the advertised amount (32 fl oz), both converted to milliliters:

Mean = (33 - 32) fl oz * 30 mL/fl oz = 30 mL

Therefore, the mean of the distribution of excess cleaning solution is 30 milliliters.

Standard Deviation:

The standard deviation of the distribution can be found using the formula for the propagation of uncertainty. Since the standard deviation of the filling amount is given as 1.5 fl oz, we convert it to milliliters as well:

Standard Deviation = 1.5 fl oz * 30 mL/fl oz = 45 mL

Therefore, the standard deviation of the distribution of excess cleaning solution is 45 milliliters.

In summary, the mean of the distribution of excess cleaning solution is 30 milliliters and the standard deviation is 45 milliliters.

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The amount of lemonade left after the consumption of 280 ml of lemonade by 14 children is 4.08 liters. The given problem can be solved by using basic mathematical operations. In the problem, it is shown that there are 14 children at the birthday party, and each child drinks 280 ml of lemonade.

And, 8 liters of lemonade are also available. The solution of the problem is as follows:

1 litre of liquid = 1000 ml of liquid

8 liters of liquid = 8 × 1000

                   = 8000 ml of liquid

Now, we can calculate the total lemonade consumed by the 14 children as follows:

Total lemonade consumed = 14 × 280

                                          = 3920 ml of liquid

                                      = 3.92liters of liquid

Therefore, the amount of lemonade left after 14 children have consumed 280 ml of lemonade each is given by:

Amount of lemonade left = 8 − 3.92

                                = 4.08liters of liquid

Therefore, 4.08 liters of lemonade is left after the 280 ml of lemonade consumption by 14 children. The problem is calculating the amount of lemonade left after 14 children have consumed 280 ml of lemonade each. To solve the problem, we first need to calculate the total amount of lemonade consumed by the 14 children. We know that each child consumed 280 ml of lemonade.

Now, we can calculate the amount of lemonade left after 14 children have consumed 280 ml of lemonade each. The amount of lemonade left is given by the difference between the total amount of lemonade available and the total lemonade consumed by the 14 children.

Therefore,

Amount of lemonade left = Total lemonade available − Total lemonade consumed

                                     = 8000 − 3920

                               = 4080 ml of liquid

                            = 4.08litres of liquid

Therefore, 4.08 liters of lemonade is left after the 280 ml of lemonade consumption by 14 children.

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Both methods will yield the same result, which represents the probability of not seeing all three colors when drawing three balls with replacement from the given urn. The answer in this case is 3/4.

(a) Using the inclusion-exclusion principle, we define events W, G, and R for the white, green, and red balls not appearing, respectively. To calculate the probability that we did not see all three colors, we use the formula P(W U G U R) = P(W) + P(G) + P(R) - P(W ∩ G) - P(W ∩ R) - P(G ∩ R) + P(W ∩ G ∩ R). Each individual probability can be calculated by considering the number of ways each event can occur divided by the total number of possible outcomes. For example, P(W) = (3/4)^3, P(G) = (3/4)^3, P(R) = (1/2)^3, P(W ∩ G) = (2/4)^3, and so on.

(b) In the direct computation method, we calculate the probability of not seeing all three colors by subtracting the probability of seeing all three colors from 1. The probability of seeing all three colors is calculated by considering the number of ways to select one ball of each color divided by the total number of possible outcomes. There are 4 possible outcomes for each ball drawn, so the probability of seeing all three colors is 4/4 * 4/4 * 2/4 = 1/4. Therefore, the probability of not seeing all three colors is 1 - 1/4 = 3/4.

Both methods will yield the same result, which represents the probability of not seeing all three colors when drawing three balls with replacement from the given urn. The answer in this case is 3/4.


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To find the probability that we did not see all three colors when drawing 3 balls with replacement from an urn containing 1 white, 1 green, and 2 red balls, we can use the inclusion-exclusion principle or calculate directly by counting the number of ways.

To find the probability that we did not see all three colors, we can use two different calculations.

(a) Let W be the event that the white ball did not appear, G be the event that the green ball did not appear, and R be the event that the red ball did not appear. We can use the inclusion-exclusion principle to calculate the probability:

P(W ∪ G ∪ R) = P(W) + P(G) + P(R) - P(W ∩ G) - P(W ∩ R) - P(G ∩ R) + P(W ∩ G ∩ R)

(b) Alternatively, we can directly compute the probability by counting the number of ways that we did not see all three colors and dividing by the total number of possible outcomes.

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2 liters per hour is equal to 555.6 millimeters per second.

To convert 2 liters per hour to millimeters per second, you need to follow these steps:

Step 1: Convert liters to milliliters

Since 1 liter = 1000 milliliters, multiply 2 by 1000 to get the number of milliliters per hour.

Therefore, 2 liters per hour is equal to 2000 milliliters per hour.

Step 2: Convert hours to seconds

Since 1 hour = 3600 seconds, divide the number of milliliters per hour by 3600 to get the number of milliliters per second.

Therefore, 2000 milliliters per hour is equal to 0.5556 milliliters per second.

Step 3: Convert milliliters to millimeters

Since 1 milliliter is equal to 1 cubic centimeter (cc) and 1 cc is equal to 1 cubic millimeter, 0.5556 milliliters per second is equal to 0.5556 cubic millimeters per second or 555.6 millimeters per second (since there are 1000 cubic millimeters in a milliliter).

Therefore, 2 liters per hour is equal to 555.6 millimeters per second.

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One diameter makes two parts of the circle. A diameter is a chord that passes through the center of a circle. When a circle is divided into two halves by the diameter, each half is called a semicircle.

When a line segment that passes through the center of a circle is drawn, it is referred to as a diameter. A circle has a diameter, its longest chord, and its endpoints lie on the circle itself. The midpoint of the diameter is the center of the circle. A diameter divides a circle into two equal parts, known as semicircles. A semicircle is the region enclosed by the arc and the diameter.

The semicircle's area is half the circle from which it was derived. The diameter is the longest chord that a circle has, and it passes through the center of the circle. The diameter divides the circle into two halves. Every chord's perpendicular bisector passes through the center of the circle. This property of the diameter is also applicable to chords. The perpendicular bisector of the chord passes through the circle's center, and the chord is divided into two equal parts.

Therefore, one diameter makes two parts of the circle. A diameter is a chord that passes through the center of a circle. When a circle is divided into two halves by the diameter, each half is called a semicircle.

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The number line can be used to determine the sum of the location of point T and -1 1/2. By visually representing the positions of these points on the number line, we can determine their sum by adding their locations.

To determine the sum of the location of point T and -1 1/2, we can plot the point T on the number line and then locate -1 1/2 on the number line. We can then add the locations of these points on the number line to find their sum.

For example, if point T is located at 3 on the number line and -1 1/2 is located at -1.5, we can add 3 and -1.5 to find their sum, which would be 3 + (-1.5) = 1.5.

By using the number line, we can visually represent the locations of the points and perform addition to find their sum accurately.

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The measure of segment QS can be determined by adding the lengths of QR and RS. In this case, since QR is 10 units long and RS is 7 units long, the measure of QS would be 17 units.

To find the measure of segment QS, we need to add the lengths of QR and RS. Given that QR is 10 units long and RS is 7 units long, we can calculate the measure of QS by adding these two lengths together. Therefore, QS = QR + RS = 10 + 7 = 17. Hence, the measure of segment QS is 17 units. By adding the lengths of the two segments that make up QS, we obtain the total length of the segment itself.

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The probability of rolling at least one six when rolling two standard number cubes is 11/36.

To determine the probability, we first need to find the total number of possible outcomes when rolling two standard number cubes. Each cube has 6 faces, numbered from 1 to 6, so the total number of outcomes is 6 multiplied by 6, which equals 36.

Next, we need to calculate the number of favorable outcomes, which is the number of outcomes where at least one six is rolled. There are three possible scenarios:

Rolling a six on the first cube and any number on the second cube.

Rolling any number on the first cube and a six on the second cube.

Rolling a six on both the first and second cubes.

For each scenario, there is a 1/6 probability of rolling a six on a single cube. Therefore, the number of favorable outcomes is 1 + 1 + 1 = 3.

Finally, we divide the number of favorable outcomes (3) by the total number of possible outcomes (36) to calculate the probability:

Probability = Number of favorable outcomes / Total number of possible outcomes

= 3 / 36

= 1 / 12

= 11 / 36

Therefore, the probability of rolling at least one six when rolling two standard number cubes is 11/36.

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The first five terms of the sequence defined by the explicit formula an = (-2)^(n-1) are 1, -2, 4, -8, 16.

To find the first five terms of the sequence defined by the explicit formula an = (-2)^(n-1), we can substitute the values of n from 1 to 5 into the formula and calculate the corresponding terms:

The explicit formula for the sequence is given by an = (-2)^(n-1).

When n = 1: a1 = (-2)^(1-1) = (-2)^0 = 1

When n = 2: a2 = (-2)^(2-1) = (-2)^1 = -2

When n = 3: a3 = (-2)^(3-1) = (-2)^2 = 4

When n = 4: a4 = (-2)^(4-1) = (-2)^3 = -8

When n = 5: a5 = (-2)^(5-1) = (-2)^4 = 16

Therefore, the first five terms of the sequence are:

1, -2, 4, -8, 16

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The end behaviors of the graph of the function are given by:

as x → −∞, f(x) → ∞

as x → ∞, f(x) → ∞

Thus, this is the required answer.

Solution:

The given polynomial function is of degree 2 (quadratic function).f(x) = ax² + bx + c, Where a, b, and c are real numbers with a ≠ 0.

The quadratic function has the general form: f(x) = a(x - r)(x - s)where r and s are the x-intercepts.

The given x-intercepts are (-2,0) and (2,0) which means that:r = -2 and s = 2.

So, the quadratic function can be written as:

f(x) = a(x - (-2))(x - 2)f(x) = a(x + 2)(x - 2), where a is a non-zero constant.The y-intercept is (0,-4).

We know that the y-intercept occurs where x = 0.

Substituting x = 0 and y = -4 in the quadratic function:

f(x) = a(x + 2)(x - 2)

when x = 0,

y = -4.

-4 = a(0 + 2)(0 - 2)

=> -4 = -4a

=> a = 1

The quadratic function is:

f(x) = (x + 2)(x - 2)

The end behaviors of the graph of the function are given by:

as x → −∞, f(x) → ∞

as x → ∞, f(x) → ∞

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If angles 1 and 2 are vertical angles, then they are congruent. If angle 1 measures 62 degrees, then angle 2 will also measure 62 degrees.

Vertical angles are formed by the intersection of two lines. They are opposite each other and have equal measures. In this case, if angle 1 measures 62 degrees, angle 2 will also measure 62 degrees because they are vertical angles.

This property of vertical angles can be understood based on the concept of a straight line. When two lines intersect, they form two pairs of vertical angles. Since a straight line measures 180 degrees, each pair of vertical angles will have a total measure of 180 degrees, and thus, each angle within the pair will have the same measure. Therefore, if angle 1 measures 62 degrees, angle 2 will also measure 62 degrees.

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According to given information, option C is the correct answer.

Given that Darrel divided 8,675 by 87.

His work is shown below.

Step 1: Set up the problem with the dividend under the division symbol and the divisor outside.

Step 2: Estimate a reasonable quotient and place it above the dividend. Then multiply and subtract. Bring down the next digit of the dividend.

Step 3: Repeat step 2 until the dividend has been brought down completely.

The given picture shows the steps done:

Option C: Darrel forgot to place a zero in the quotient.

Thus option C is the correct answer.

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The statement "m∠PQT is 9" is false.In the given scenario, ray QS bisects ∠PQR. This means that ∠PQS and ∠SQR are equal in measure because they are the two halves of the same angle.

Let's denote the measure of ∠PQS as (7x - 6)° and the measure of ∠SQR as (4x + 15)°. Since these two angles are equal, we can set up an equation: (7x - 6) = (4x + 15). Solving this equation, we find x = 7.

Now, to find the measure of ∠PQT, we need to substitute the value of x into the expression (7x - 6)°. Plugging in x = 7, we get (7 * 7 - 6)° = 43°. Therefore, the correct statement should be "m∠PQT is 43," not 9. Thus, the statement "m∠PQT is 9" is false.

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The equation is 38.25 = 4.25h and Tomás worked for 9 hours.

To find the number of hours it took Tomás to clean the garage, we can set up an equation using the given information.

Let's assume the number of hours Tomás worked is "h."

We know that Tomás was paid $4.25 per hour, so the total amount he earned can be calculated by multiplying the hourly rate by the number of hours worked:

Total earnings = Hourly rate * Number of hours

In this case, the total earnings are $38.25, and the hourly rate is $4.25:

$38.25 = $4.25 * h

To solve for "h," we need to isolate the variable on one side of the equation. We can do this by dividing both sides of the equation by $4.25:

$38.25 / $4.25 = h

Simplifying the right side:

9 = h

Therefore, it took Tomás 9 hours to clean the garage.

By setting up the equation and solving it, we determined that Tomás worked for 9 hours.

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Dylan is at a position 10 feet from the meeting place after 5/6 seconds, while Ryan is not at a position 10 feet from the meeting place.

To find when each person is at a position 10 feet from the meeting place, we can use their velocities and the concept of relative motion.

For Dylan:

Dylan's velocity is 12 feet per second. Since Dylan is walking towards the meeting place, his velocity is positive. To find when Dylan is at a position 10 feet from the meeting place, we can set up the following equation:

Distance = Velocity × Time

10 = 12t

Solving for t, we divide both sides of the equation by 12:

t = 10/12

t = 5/6 seconds

Therefore, Dylan is at a position 10 feet from the meeting place after 5/6 seconds.

For Ryan:

Ryan's velocity is -10 feet per second. Since Ryan is walking in the opposite direction, his velocity is negative. To find when Ryan is at a position 10 feet from the meeting place, we can set up the following equation:

Distance = Velocity × Time

10 = (-10)t

Solving for t, we divide both sides of the equation by -10:

t = 10/(-10)

t = -1 second

Since time cannot be negative in this context, we can conclude that Ryan is not at a position 10 feet from the meeting place.

In summary, Dylan is at a position 10 feet from the meeting place after 5/6 seconds, while Ryan is not at a position 10 feet from the meeting place.

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Ali has hired Mark and Alexis to work for his shipping company, and Mark can load a truck with packages in 120 minutes, while Alexis can load the same number of packages in 240 minutes.

To find out how long they will take to load a truck together, we'll use the formula below:T = (T₁ × T₂) ÷ (T₁ + T₂)Where T is the time it takes for Mark and Alexis to load a truck together, T₁ is the time it takes for Mark to load a truck alone, and T₂ is the time it takes for Alexis to load a truck alone.

We can plug in the given values: T = (120 × 240) ÷ (120 + 240) = 28,800 ÷ 360 = 80Therefore, it would take Mark and Alexis 80 minutes to load a truck together.

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Therefore, the probability of a randomly chosen boy having a height less than 66 inches is 15.87%.

The heights of the Lincoln High School boys have a normal distribution with a mean height of 70 inches and a standard deviation of 4 inches. The probability of a randomly chosen boy having a height less than 66 inches is asked. We can solve this problem by using the standard normal distribution or z-distribution. The standard normal distribution has a mean of zero and a standard deviation of one. It is a normal distribution that has been transformed to have a mean of 0 and a standard deviation of 1. Therefore, we must convert the given values into z-scores. The z-score formula is:
z = (x - μ) / σ
where x is the value we are interested in, μ is the mean, and σ is the standard deviation.
In this problem, we want to find the probability that a boy's height is less than 66 inches, so x = 66. Using the formula above, we get:
z = (66 - 70) / 4 = -1
This means that a boy's height of 66 inches is one standard deviation below the mean. To find the probability of a boy having a height less than 66 inches, we look up the area to the left of the z-score of -1 in the standard normal distribution table. The table gives us the probability of a randomly chosen boy having a height less than 66 inches as 0.1587 or 15.87%.
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The correct expression with the substituted values is −5±√(5^2 - 4(4)(-6)) / (2(4)).

The expression that shows the correct numbers substituted into the quadratic formula to solve the equation 4x^2 + 5x - 6 = 0 is:

−5±√(5^2 - 4(4)(-6)) / (2(4))

In the quadratic formula, the general form is x = (-b ± √(b^2 - 4ac)) / (2a), where a, b, and c are the coefficients of the quadratic equation. In this case, a = 4, b = 5, and c = -6.

Substituting these values into the quadratic formula, we have:

x = (-5 ± √(5^2 - 4(4)(-6))) / (2(4))

Simplifying further:

x = (-5 ± √(25 + 96)) / (8)

x = (-5 ± √121) / 8

x = (-5 ± 11) / 8

Therefore, the correct expression with the substituted values is:

−5±√(5^2 - 4(4)(-6)) / (2(4))

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(a) The landscaper needs 3 times the sum of the length and width of the yard in meters for the fencing.

(b) The area of the garden is one-third of the area of the yard, multiplied by 2.25.

We have,

(a) To find the amount of fencing needed, we need to determine the perimeter of the yard in meters.

According to the scale, 2 cm on the drawing represents 3 m in reality. This means that 1 cm on the drawing represents 1.5 m in reality (since 3 m divided by 2 cm is 1.5 m/cm).

Let's assume the length of the yard in the drawing is L cm and the width is W cm.

Then, the length of the actual yard would be L x 1.5 m, and the width would be W * 1.5 m.

The perimeter of the yard is given by the formula:

Perimeter = 2 x (length + width)

Substituting the actual measurements, we have:

Perimeter = 2 x (L x 1.5 m + W x 1.5 m)

= 3 x (L + W) m

Therefore, the landscaper would need 3 times the sum of the length and width of the yard in meters for the fencing.

(b) The area of the garden can be determined by calculating 1/3 of the area of the actual yard.

Let's assume the area of the yard in the drawing is A square cm. Then, the area of the actual yard would be A x (1.5 m)², since each dimension is scaled by 1.5 m/cm.

To find the area of the garden, we calculate:

Area of garden = (1/3) x Area of yard

= (1/3) x (A x (1.5 m)^2)

= (1/3) x (A x 2.25) square meters

Therefore, the area of the garden would be one-third of the area of the yard, multiplied by 2.25.

Thus,

(a) The landscaper needs 3 times the sum of the length and width of the yard in meters for the fencing.

(b) The area of the garden is one-third of the area of the yard, multiplied by 2.25.

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When a straight angle is split into two angles, the sum of those angles is 180 degrees because a straight angle measures 180 degrees.

Let's assume that the smaller angle is represented by x. Since the larger angle is twice as big as the smaller angle, it can be represented as 2x. Therefore, the sum of the two angles can be expressed as:

x + 2x = 180 degrees This simplifies to 3x = 180 degrees.

Dividing both sides by 3, we get: x = 60 degrees.

This means that the smaller angle is 60 degrees and the larger angle is twice as big, or 2(60) = 120 degrees.

Therefore, the two angles are 60 degrees and 120 degrees.

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The algebraic property that could be used to rewrite 4x + 2y as 2y + 4x is option C: Commutative Property of Addition.

From the question. if   a, b and c are any numbers,

Based on Associative Property of Addition, it state that:

a + ( b + c ) = ( a + b ) + c

Based on Associative Property of Multiplication, it state that:

a(bc) = (ab)c

Based on Commutative Property of Addition it state that:

a + b = b + a

Based on Commutative Property of Multiplication it state that:

ab = ba

Note that , 4x + 2y = 2y + 4x

So, Commutative Property of Addition is used in the expression.

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Which algebraic property could be used to rewrite 4x + 2y as 2y + 4x? A. Associative Property of Addition

B. Associative Property of Multiplication

C. Commutative Property of Addition

D. Commutative Property of Multiplication

The expression "x - 12" can be modeled in a real world situation where you are trying to find the difference between a number x and 12. Here is an example:Suppose you have a jar containing x marbles.

You give away 12 marbles to your friend. The number of marbles you have left in the jar can be modeled by the expression "x - 12". In this situation, x represents the original number of marbles in the jar, and 12 represents the number of marbles given away to your friend. The expression "x - 12" calculates the number of marbles you have left after giving away 12.

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The area or amount of cloth that will be required to make the sail of the boat is 50.5 square feet (approx.).

Given that the boom of a sailboat is 26 feet long and the sail is an equilateral triangle. We have to determine the amount of cloth that will be required to make the sail of the boat.

The formula to calculate the area of an equilateral triangle is:

A = (√(3)/4)*a²,

where

A represents the area of the equilateral triangle

a represents the side of the equilateral triangle.

Here, the sail is an equilateral triangle.

Therefore, the length of each side of the sailboat is given as:

Length of each side of the sailboat = 26 feet / 3

                                                          = 8.67 feet or 8 feet (approximately)

We can calculate the area of the sail using the below formula;

A = (√(3)/4)×a²,

where,

A represents the area of the equilateral triangle

a represents the length of each side of the sailboat.

By substituting the value of a = 8.67 in the above equation, we get the area of the sail as follows:

A = (√(3)/4)×a²

A = (√(3)/4)*(8.67)²

A = 50.5 square feet (approx.)

Hence, the amount of cloth that will be required to make the sail of the boat is 50.5 square feet (approx.).

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Joshua spent an amount determined by the prices of mixed nuts, chocolate candies, and granola to make the trail mix.

The exact cost cannot be determined without the price per pound of each ingredient.

To calculate how much Joshua spent to make the trail mix, we need to know the price per pound of each ingredient: mixed nuts, chocolate candies, and granola. Without this information, we cannot provide an exact answer.

However, we can provide a general approach to calculate the cost if we have the price per pound for each ingredient. Let's assume the price per pound of mixed nuts is $x, the price per pound of chocolate candies is $y, and the price per pound of granola is $z.

To determine the cost of each ingredient, we multiply the weight in pounds by the respective price per pound. For mixed nuts, Joshua bought 1/5 pound, so the cost of mixed nuts would be (1/5) * x. For chocolate candies, he bought 1/2 pound, so the cost of chocolate candies would be (1/2) * y. Lastly, for granola, he bought 1 1/4 pounds, so the cost of granola would be (1 1/4) * z.

To find the total cost, we add the costs of all three ingredients: (1/5) * x + (1/2) * y + (1 1/4) * z.

Without the specific prices per pound, we cannot provide a numerical answer, but you can calculate the total cost using the given weights and the corresponding prices per pound.

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Hence, the correct option is B) 11.1.

Given that Suzy had been working for 15 minutes when she finished problem 5 and she completed all 20 questions in 45 minutes.To find what fraction of the questions Suzy had finished when she finished problem 5; we need to subtract the time taken to finish problem 5 from total time and divide it by total time and the multiply it by 20. The answer can be rounded off to the nearest tenth if necessary.

Fraction of questions completed by Suzy = [(45-15)/45] × 20= 0.556 × 20= 11.12

As we see that Suzy had completed 11.12 questions when she finished the fifth problem.

Therefore, rounding it to the nearest tenth, the decimal form of the answer is 11.1.

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