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5 votes
The product of 8 and the sum of 4 and a number is 112. What is the number?

Which equation could be used to solve for the number?

2 Answers

4 votes
You probably are supposed to use PEMDAS (the order of operations) to represent this equation so i would choose C.

It sounds like 8*(n+4)=112 then you have simple algebraic equation that could be solved by a TI-Calculator or by hand
Divide both sides by 8
Subtract four from both sides
You're left with n= the answer
User Jogaco
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8.4k points
3 votes
Product of 8 and the sum of 4 and a number:

sum of 4 and a number: (4 + n)

Product of 8

8 x (4 + n) is 112

8 x (4 + n) = 112

Distribute

32 + 8n = 112

Subtratc

8n = 80

Divide by 8

n = 10

The number is 10, and next time please put options because it says "Which equation could be used to solve for the number?"
User Aaron Belchamber
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8.4k points