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If F = 9/5 C + 32, find C when F = 98.6

A: 30

B: 37

C: 39

D: 41

**Comments**

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F = 9/5 C + 32

subtract 32 from both sides

F - 32 = 9C/5

5(F - 32) = 9C

C = 5/9 (F - 32)

if F = 98.6

C = 5/9 (98.6 - 32)

C = 37

**Answer: B**

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