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pychu [463]
3 years ago
15

Please help I put 100 points

Mathematics
2 answers:
Alenkinab [10]3 years ago
8 0

Answers:

26 math problems

16 science problems

===============================================

Work Shown:

m = number of math problems

s = number of science problems

Since "you have 10 more math problems than science problems", we can say m = s+10

Also, we can say m+s = 42 because there are 42 problems total.

Replace m with s+10, which is the substitution rule, and solve for s like so

m+s = 42

s+10+s = 42

2s+10 = 42

2s = 42-10

2s = 32

s = 32/2

s = 16

You have 16 science problems

m = s+10

m = 16+10

m = 26

and you have 26 math problems

To check this, we would say m+s = 26+16 = 42 which confirms the answer.

Aleks04 [339]3 years ago
5 0

I cant see ur image.........

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In question 3, if -7 is f(x), and it is 3x-4, the answer is -1; if -7 is f(x), and the answer is 4x-3, the answer is -1; if -7 is f(x), and it is 1/2x+3, answer is -20;  if -7 is f(x), and it is 3x+1/2, the answer is -5/2.

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Step-by-step explanation:

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