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4 years ago

10

solve the formula 9/5c + 32=f for c and use the resulting formula to find the tempeture in degrees celsius when the fahrenheit t

empeture is 77

2 answers:

Katena32 [7]4 years ago

6 0

9c/5+32=f

(9c+160)/5=f

9c+160=5f

9c=5f-160

c=(5f-160)/9

c(77)=(5(77)-160)/9

c(77)=25°

zalisa [80]4 years ago

3 0

9/5c + 32 = f
9/5c = f - 32
c = 5/9(f - 32) <==

when f = 77
c = 5/9(77 - 32)
c = 5/9(45)
c = 225/9
c = 25 <==

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