Problema Solution
A local boys club sold 176 bags of mulch and made a total of $520. They did not sell any if the expensive cocoa mulch ($4.75). Find out how many of the hardwood ($3.50) and pine bark ($2.75) was sold
Answer provided by our tutors
Let's say number of hardwood = h, number of pine bark = p
h+p=176 ---- (1)
3.5h+ 2.75p =520 ---- (2)
substitute (1) into (2),
p=176-h
3.5h + 2.75(176-h) = 520
3.5h + 484 - 2.75h = 520
0.75h = 36
h= 36/0.75
h= 48
p= 128