High School

A temperature in degrees Celsius can be converted to the equivalent temperature in degrees Fahrenheit using the formula below.

F = 9/5C+32

What is the value of C if F = 149?

A. 65

B. 210

C. 80

D. 126

Answer :

149=9/5c+32
9/5c=149-32
9/5c=117
9c=5*117
C=585÷9
C=65

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