Question

the function given by
f(x)=2(x+10)
can be used to convert dress sizes x in the US to dress sizes f in Italy. For what dress sizes in the US will dress sizes in Italy be between 32 and 46?

Answer 1

no worries your still the man

Answer 2

so f(x) = 32 and f(x) = 46

Answer 3

32 <= f(x) <= 46


32 <= 2(x+10) <= 46


32 <= 2x+20 <= 46


32-20 <= 2x <= 46-20


12 <= 2x <= 26


12/2 <= x <= 26/2


6 <= x <= 13



So a size 6 in the US corresponds to a size 32 in Italy

Also a size 13 in the US corresponds to a size 46 in Italy