Answer: 17 degrees (choice A)
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How I got that answer:
Replace F with 62, then isolate C (in other words, solve for C). The idea is to follow PEMDAS in reverse to isolate C. So we undo the addition first and then undo the multiplication next.
F = (9/5)*C + 32
62 = 1.8*C + 32 ................ replace F with 62
62-32 = 1.8*C+32-32 ..... subtract 32 from both sides to undo addition
30 = 1.8*C
1.8*C = 30
1.8*C/1.8 = 30/1.8 ....... divide both sides by 1.8 to undo multiplication
C = 16.67
C = 17 degrees
The answer is approximate
