<PRE><B>Question 43830</B>
First, identify the formula and plug-in the values:
F =(9/5)C+32
F = 77
So, 77 =(9/5)C+32
Solve for C:
77 - 32 =(9/5)C+32 - 32
45=9/5C
(5/9)(45/1) = (9/5)(5/9)C
25=C
.
Check the answer by pluggin C=25 back into the original formula:
F =(9/5)C+32
77 =(9/5)(25)+32
77 =(9)(5)+32
77 =(9)(5)+32
77 = 45 + 32
77=77 Checks out.

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