Question 163649
3.60x+3.25(17-x)=58.75
3.60x+55.25-3.25x=58.75
.35x=58.75-55.25
.35x=3.50
x=3.50/.35
x=10 silk ties were cleaned.
17-10=7 non silk ties.
Proof:
3.60*10+3.25*7=58.75
36.00+22.75=58.75
58.75=58.75