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Mashutka [201]
3 years ago
10

Joana joins a cd club. She pays $7 per month plus $10 for each cd that she orders. Write an equality to find how many cd's she c

an purchase in a month. If she spends no more than $100. Identify what your variable represents.
Mathematics
1 answer:
maksim [4K]3 years ago
6 0
7x+10 \leq 100

x=the number of months

So the "7x" is the $7 per month, and the "10" is the $10 for each CD being ordered. It can't be more than 100, so the "less than or equal to" sign will be used. 


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The equation of a circle is (x - 4)² + (y + 3)² = 9. What are the coordinates of the center of this circle? (-4, 3) (4, -3) (4,
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Answer: (-4,-3)

Step-by-step explanation:

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I neeeed helppp plz
Angelina_Jolie [31]

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7. y=x-2, 8. y=3/2x+4, 9.  y=-3/4x+8, 10. y=2x-7, 11. y=-5x-3, 12. y=4x-5,             13. y=-3x-1, 14. y=-1/2x+1, 15. y=3/2x+4

Step-by-step explanation:

First you have to plug in the points into y2-y1/x2-x1. This would make it      -2-0/0+1. Simplify this to get -2/1 which is -2. This makes the slope -2. Then plug in the slope into point intercept form y-y1=m(x-x1) where m is the slope. This time, I will use the point (0,-2). Therefore, the equation will be y+2=1(x-0) which is equal to y+2 =x-0 which is equal to y=x-2.

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2 years ago
The following dot plot depicts the spelling test scores, in percents, of Mrs. Michael's fifth grade class. According to the dot
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Step-by-step explanation:

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Steven has 113 baseball cards. Steven and Lucas have more than 127 baseball cards together. If b represents the number of baseba
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B.

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The trajectory of a golf ball hit from a tee on the ground at an angle of 40 degrees with an initial
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Step-by-step explanation:

<u>Given function:</u>

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<u>Rewrite in the standard form:</u>

  • f(x) = - 0.0033x² + 0.84x

<u>The maximum height is the vertex with x- coordinate -b/2a, which is:</u>

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<u>The highest point is:</u>

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<u>The horizontal distance the golf ball travels before hitting the ground:</u>

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8 0
2 years ago
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