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romanna [79]
3 years ago
10

How to solve equations

Mathematics
2 answers:
Artist 52 [7]3 years ago
7 0
-2m+15=45
-2m=45-15
-2m=30
2m=-30
m=-15
Lady bird [3.3K]3 years ago
6 0
-2m + 15 = 45 (original problem)
-2m = 30          (remove 15 from both sides)
-2m/-2 = 30/-2 (divide by -2)
m = -15
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oksano4ka [1.4K]
Answer:
(6,-1)

Explanation:
The slope of the line can be calculated using the following formula:
slope = \frac{y2-y1}{x2-x1}

We are given that:
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point (x1,y1) is (-2,5)

We will use each of the given points to calculate the corresponding slope, then compare the calculated slope with the given one.

For point (6,-1):
slope = \frac{-1-5}{6--2} = -0.75 ........> accepted choice

For point (2,8):
slope = \frac{8-5}{2--2} = 0.75 ........> rejected choice

For point (-5,1):
slope = \frac{1-5}{-5--2} = 4/3 ........> rejected choice

For point (1,1):
slope = \frac{1-5}{1--2} = -4/3 ........> rejected choice

Therefore, the first option is the only correct one.

Hope this helps :)
5 0
2 years ago
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mixer [17]

Answer:D

Step-by-step explanation:

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For hardback selection:

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So , if at least one paperback selected will be : 70-15

That is 55

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3 years ago
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Step-by-step explanation:

ok

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GaryK [48]

Answer:

D but read below.

Step-by-step explanation:

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8 0
2 years ago
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