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tresset_1 [31]
2 years ago
10

7.5x = 30 in the since of algebra

Mathematics
1 answer:
erma4kov [3.2K]2 years ago
5 0
Answer:x=4
7.5x=30
Divide by 7.5 on both sides
x+4
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A salesman needed to sell a used car. He priced it at $4,500 the first day it was on the
Akimi4 [234]

Answer:

$3960

Step-by-step explanation:

12% of $4,500 is 540.

Subtracting the 12% means taking away $540 from $4,500, which gives you $3960

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3 years ago
a large container holds 4 gallons of chocolate milk that has to be poured into bottes. each bottle holds 2 pints.
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velikii [3]
Rate of change is another way to say slope.

Slope is (the change in y) / (the change in x).
The formula for slope is:
m = (y2 - y1)/(x2 - x1), with (x1, y1) being one point and (x2, y2) being the second. What you need to do is order the slopes from smallest to largest because slope means the same thing as rate of change.

#17. First, you need to find the slope of function A. To do this, I’m choosing two different points I see on the graph: (1,1) and (2,1). I now plug these into the slope formula:
m = (1-1)/(2-1) = 0/1 = 0.
The slope for function A = 0

To find the slope for function B, you can choose any two points. I’m going to use (3,0) and (6,1)

m = (1-0)/(6-3) = 1/3
The slope for function B is 1/3

For function C, you are already given the slope. That equation is in something called slope-intercept form (y=mx+b), where the x is being multiplied by the slope.
The slope on function C = 1/4

So,, A has the smallest slope, C has the second smallest slope, and B has the largest slope.

#18. The two points in using to find the slope for function A are (0,-3) and (1,0).
m = (0+3)/(1-0) = 3/1 =3
The slope for function A is 3

The two points I’m using for function B are (-2, 10) and (0, 20)
m = (20-10)/(0+2) = 10/2 = 5
The slope for function B is 5

The slope for function C is 1. When the slope is 1, it is not written because any number (other than 0) times 1 equals 1.

Function C has the smallest slope, function B has the second smallest slope, and function C had the largest slope.

It would probably be better for you to try 19 and 20 on your own, and let me or anyone else on Brainly know if you have any questions or something doesn’t make sense.
I hope this has helped!
6 0
3 years ago
Melanie's car payment was $511 a month. She also paid $159 a month for insurance. How much does Melanie spend in 12 months on he
Georgia [21]

Answer:

$8040 spent on her car and insurance payments.

Step-by-step explanation:

511 + 159 = 670

670 times 12 = 8040

7 0
2 years ago
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sergejj [24]

Answer:

6) y = -x - 5

7) y = \frac{7}{5}x + 3

Step-by-step explanation:

format y = mx + b

8 0
2 years ago
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