F = 9/5C + 32
Subtract 32 to both sides:
F - 32 = 9/5C
Divide 9/5 to both sides or multiply by its reciprocal, 5/9:
5/9(F - 32) = C
Simplify:
C = 5/9F - 160/9
Answer: 30
Step-by-step explanation:
4250/250= 17 ( 1 dollar = 17 pesos )
510/17= 30 dollars was the sweater