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frosja888 [35]
3 years ago
13

9. If y = 30 when x = 7, find x when y = 12.​

Mathematics
1 answer:
Marianna [84]3 years ago
6 0
I have my work at the bottom but to explain you have to divide 30/12, and I got 2.5. That means 30 is 2.5 times bigger than 12. Because we have to find x, we have to divide 7/2.5, to find what is 2.5 times smaller than 7. That’s 2.8. So, x= 2.8

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Step-by-step explanation:

1

8

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2

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1

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18

to both sides of the equation

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