Answer:
y = 9x/5 + 50
Step-by-step explanation:
We are represent the information as coordinate (x,y)
If the cost for an order of 100 kilograms of steel bars is $230, this is expressed as (100, 230)
Also if the cost for an order of 150 kilograms of steel bars is $320, this is expressed as;
(150, 320)
Find the equation of a line passing through the points. The standard form of the equation is expressed as y = mx+c
m is the slope
c is the intercept
Get the slope;
m = y2-y1/x2-x1
m = 320-230/150-100
m = 90/50
m = 9/5
Get the y-intercept by substituting m = 9/5 and any point say (100, 230) into the expression y = mx+c
230 = 9/5(100)+c
230 = 9(20)+c
230 = 180 + c
c = 230-180
c = 50
Get the required equation
y = mx+c
y = 9/5 x + 50
Hence an equation for the cost of an order of steel bars (y) in terms of the weight of steel bars ordered (x) is y = 9x/5 + 50
The sum of a number a and negative 12 is 6. Write the equation.
Which method can be used to solve - 3-5 = 15? PLEASE HELP!
Answer:
cross multiply
Step-by-step explanation:
Answer:
OOOoOOOOOOOOooOOooOOOoOoOoOoOoOoOooooooooOOOOFFFFFFFFFFFFFFFFFFFFF
Step-by-step explanation:
You did the same thing to me
My teacher wants me to do 6.15÷31 in estimate but I don't get it
Problem: 6:15÷31 Estimate
I would say I guess it is about around 0.198387.
can someone help me please
Answer:
what kinda math is this
Step-by-step explanation:
sorry i cant help
I’m pretty sure I have the right answer but if you answer I will give brainiest
Answer:
your answer would actually be B
Step-by-step explanation:
Answer:
The right answer is choices B.
Step-by-step explanation:
I hope this helps
will mark brainliest if the answer is correct
Answer:
2/16
Step-by-step explanation:
your adding 2 and 16 so 2/16
A chart labeled table B: effect of mass on temperature with initial temperature as 25 degrees Celsius, mass w is 1.0 kilograms and h is 500 m. The chart is 5 columns and 5 rows. The first column is labeled mass c in kilograms with entries 1.0, 3.0, 6.0, 9.0. The second column is labeled temperature final in degrees celcius with entries 26.17, 28.52, 32.03, 35.55. The third column is labeled change in temperature in degrees celcius with entries 1.17, 3.52, 7.03, 10.55. The fourth column is labeled gravitational potential energy in kilojoules with no entries. The last column is labeled delta H in kilojoules with no entries. Use the data provided to calculate the gravitational potential energy of each cylinder mass. Round your answers to the nearest tenth. 3 kg: kJ 6 kg: kJ 9 kg: kJ
Answer:
3 kg= 14.7
6 kg= 29.4
9 kg= 44.1
Step-by-step explanation:
The gravitational potential energy of the cylinders as follows:
3 kg: 14.7 kJ, 6 kg: 29.4 kJ, and 9 kg: 44.1 kJ
What is the GPE?GPE is gravitational potential energy, mass is the mass of the object in kilograms, gravity is the acceleration due to gravity in meters per second squared (usually taken to be 9.8 m/s²), and height is the height of the object above the reference point in meters.
To calculate the gravitational potential energy (GPE) of an object, you need to know its mass, the acceleration due to gravity, and its height above a reference point. You can use the formula:
GPE = mass × gravity × height
In this case, the mass of each cylinder is given in the first column of the chart, and the height of the cylinders is 500 meters. However, the acceleration due to gravity is not given in the chart. We can assume that it is 9.8 m/s², but if you have a different value, you should use that instead.
Using these values, we can calculate the gravitational potential energy of the 3-kilogram cylinder as follows:
GPE = 3 kg × 9.8 m/s² × 500 m = 14700 kg m/s²
Converting this to kilojoules gives us:
GPE = 14700 kgm/s² × (1 J/1 kgm/s²) = 14700 J
Converting this to kilojoules (kJ) gives us:
GPE = 14700 J / 1000 J/kJ = 14.7 kJ
Therefore, the gravitational potential energy of the 3-kilogram cylinder is 14.7 kJ.
You can use the same process to calculate the gravitational potential energy of the 6-kilogram is 29.4 kJ and the 9-kilogram cylinders is 44.1 kJ.
Learn more about gravitational potential energy here:
https://brainly.com/question/19768887
SPJ2
Which expressions equal zero?
A) -52 + 52
B) 12 +(-1
C) 6-(-6)
D) -27 +(-27)
E) -83 -(-83)
Answer:
A,B,E
Step-by-step explanation:
I checked on the usa test prep and its what those three
The options satisfying expressions that result to zero are,
A. - 52 + 52.
E. - 83 - ( - 83).
What are additive and multiplicative inverses?A number's additive inverse is a number that is added to it until the result is zero.
A number multiplied by another such that the result is 1 is the multiplicative inverse of that number.
A number added to it's additive inverse results to zero.
From the given options the only options that satisfies the result to be zero
are,
- 52 + 52.
- 83 - (- 83).
= - 83 + 83.
As the negative signs distribute to make it a positive number.
learn more about additive and multiplicative inverses here :
https://brainly.com/question/13715269
#SPJ2
Express 7 as a fraction of 28.
Give your answer in its simplest form.
Answer:196/28 = 7
Step-by-step explanation:
Answer: 196/28 = 7
I hope this helps, and Happy Holidays! :)
Based on the diagram below, which statement is true?
b
a
С
110°
115°
d
60°
120°
Answer:
where is the diagram???
Step-by-step explanation:
Answer:
where's the diagram/picture ?
Step-by-step explanation:
LAST QUESTION AND HURRY IM BEING TIMED Last year, the enrollment at Highland Middle School was 800 students. This year, the enrollment dropped to 700 students due to the opening of a new middle school. Which best reflects the percent change in enrollment at Highland Middle School from last year to this year?
Answer:
-12.5
Step-by-step explanation:
.24 of the jackets for sale at a clothing store are blue. If this represents 15% of all jackets in the
store, how many jackets are not blue
Answer:
165 jackets or 85%
Step-by-step explanation:
I could really use some help !! (The question is in the picture)
Here are the answer choices:
A. 1 and 2 are complementary
B. 3 and 5 are vertical
C. 2 and 7 are alternate interior angles
D. 1 and 8 are corresponding
(Please Anserw if you’re sure this is really important!!)
Answer:
c
Step-by-step explanation:
There inside the transversal and there alternate angles
Solve the system algebraically.
4x + 6y = -4
4x + 3y = 2
ASAP
Answer:
(2,-2)
Step-by-step explanation:
-1(4x + 6y = -4)
4x + 3y = 2
-4x - 6y = 4
4x + 3y = 2
-3y=6
divide it by -3 to get y.
y=-2
4x + 3(-2) = 2
4x - 6 = 2
add 6 to both sides.
4x = 8
divide by 4 to get x.
x=2
(2,-2)
Hope this helps!
Use the triangle angle-sum theorem and other angle relationships to find the missing angle measures
The price of a computer component is decreasing at a rate of 10% per year. State whether this decrease is linear or exponential. If the component costs $ 110 today, what will it cost in three years?
Answer:
The cost in 3 years is $80.19.
Step-by-step explanation:
The cost of computer component is $110 today.
The cost is decreasing at a rate of 10% per year.
When it decreases by 10% per year then it is exponential.
Initial cost is $110. When it decreases 10% per year, the decay factor is 1-0.10 =0.90.
So, we could use the exponential formula y=[tex]ab^{x}[/tex]
Where 'a' is initial cost and b is decay factor.
Our equation would by plug in 'a' as 110 and 'b' as 0.90.
We get
[tex]y= 110(0.9)^{x}[/tex]
Now, to find the cost in 3 years, use x as 3.
[tex]y=110(0.9)^{3}[/tex]
Which is simplified to
y=$80.19
The Viking football team won 4 out of every 5 of their football games. If they played 20 games, how many games did they lose?
Answer:
i believe that they lost 5 because they won 4 out of 5 so they won 15 games because 4x5=20 so they lost five games
Step-by-step explanation:
can i get brainlest
A company's profits for a week are as follows:
Monday: +$32.65, Tuesday: -$75.32,
Wednesday: -$125.75, Thursday: +$100.89,
and Friday: +$65.30. Does the company show
a gain or loss at the end of the week?
Answer:
Loss
Step-by-step explanation:
If you add all the numbers up you get -2.23 which would be a loss
Answer:
The company shows loss
Step-by-step explanation:
32.65 - 75.32= -42.67 so they're already at a loss
you would add -125.75 and -42.67 and woud get -168.42
Then you would add 100.89 and 65.30 and you would get 166.19
166.19+(-168.42)=-2.23
9.
30% of the members of a club are female and 20%
of these females own cars. 30 female members in
the club own cars.
PROBLEM
SOLVING
(a) How many female members are there?
(b) What is the total number of members?
(c) What percentage of the club members are
females who own cars?
please answer and fast
volume of 11ft, 10ft, 22ft, 7ft, 4ft, and 10ft
Answer:
i really dont get what u want
Step-by-step explanation:
En una escuela se organiza una fiesta. Uno de los padres se ofrece llevar cajas de de botellas de cola . Si en cada caja hay 12 botellas . ¡ Cuántas cajas debe llevar el padre de familia para repartir entre 72 estudiantes?
Answer:
Cantidad de cajas= 6
Step-by-step explanation:
Botellas por caja= 12 botellas
Voy a suponer que a cada persona le corresponde una botella.
Para calcular la cantidad de cajas, debemos usar la siguiente formula:
Cantidad de cajas= total de botellas / botellas por caja
Cantidad de cajas= 72 / 12
Cantidad de cajas= 6
What is the equation in point-slope form of the line that passes through the point (4,8) and has a slope of 14?
A. Y+8=1/4(x-4)
B. Y-4=1/4(x+8)
C. Y-8=1/4(x+4)
D. Y+4=1/4(x-8)
Answer:
The answer is A
Step-by-step explanation:
A professional hockey team has 15 wingers. 5 of these wingers are 30-goal scorers. Every fall the team plays an exhibition game with the club’s farm team. In order to make the match more interesting for the fans, the coaches agree to select two wingers at random from the pro team to play for the farm team. What is the probability that two of the 30-goal scorers are selected to play for the farm team?
Answer:
Step-by-step explanation:
Three friends went to a ballgame. Each bought a ticket for $8 and they shared a bag of peanuts that cost $5. Which expressions represent how much they spent in all?
Answer:
13$ dollars
Step-by-step explanation:
I hope this helps
Gemma earns $575 a week plus $180 commission for each car she sells. She earned
$1835 last week. How many cars did she sell?
O She sold 6 cars.
O She sold 7 cars.
O She sold 8 cars.
O She sold 9 cars.
Answer:
7 cars
Step-by-step explanation:
Gemma earns $575 a week plus $180 in commission for each car sold
She earned $1835 last week
Therefore the amount of cars sold can be calculated as follows
= $575 + $180(7)
= $575 + $1260
= $1835
Hence 7 cars were sold
can someone answer this please
Answer:
The coordinates of point P are (1, -1)
Step-by-step explanation:
If the point (x, y) reflected about the x-axis, then its image is (x, -y)To find the image of a point reflected about the x-axis change the sign of its y-coordinateThe rule is R x-axis → (x, -y)If the point (x, y) reflected about the y-axis, then its image is (-x, y)To find the image of a point reflected about the y-axis change the sign of its x-coordinateThe rule is R y-axis → (-x, y)→ Assume that the coordinates of point P are (x, y)
∵ The coordinates of point P are (x, y)
∵ The rule of the reflection is R y-axis (P)
∴ Its image = (-x, y)
∵ The image = (-1, -1)
→ Equate the two images
∴ (-x, y) = (-1, -1)
∴ -x = -1
→ Divide both sides by -1
∴ x = 1
∵ y = -1
∴ The coordinates of point P are (1, -1)
Help please! Thank you.
How many feet are in 2.5 miles if there are 1,760 yards in one mile (1 yd = 3 ft)
A. 587
B. 13,200
C. 5,280
Answer:
1760 yards
1 mile = 1760 yards. The symbol is "mi".
Step-by-step explanation:
find the values of x and y
Answer:
2700
Step-by-step explanation:
base times height
45 time 60 = 2700
