If F = \(\frac{9}{5}\)C + 32, find C when F = 98.6
A
30
B
37
C
39
D
41
Verified Correct Answer: B.
Step-by-Step Mathematical Solution
F = \(\frac{9}{5}\)C + 32
When F = 98.6
98.6 = \(\frac{9}{5}\)C + 32
98.6 - 32 = \(\frac{9}{5}\)C
66.6= \(\frac{9}{5}\)C
66.6 x 5 = 9C
C = \(\frac{66.6 \times 5}{9}\)
= 37
Source: Myschool Past Questions Archive (Record #49229)