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If F = 9/5 C + 32, find C when F = 98.6  A:  30&n...
waec-2018 ssce-exam-2018 waec-mathematics-2018 math
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If F = 9/5 C + 32, find C when F = 98.6 

A:  30 

B:  37 

C:  39 

D:  41

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alberteinstein
Asked by alberteinsteinrep:269
School not set Nigeria
01 September 2020

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peter
Peter answeredrep:1.7K
University of Lagos Nigeria
01 September 2020
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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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