Problema Solution
Jane sold 125 boxes of girl scout cookies. Thin mints cost $3.00 and shortbread cookies cost $3.25. In all, $388.50 worth of boxes were sold. How many of each kind were sold?
Answer provided by our tutors
m+s=125 s=125-m
3m+3.25s=388.50
3m+3.25(125-m)=388.50
3m+406.25-3.25m=388.50
-0.25m=-17.75
m=71
s=125-71=54