Problema Solution
bobby paid 76.60 pesos for a pencil,a pad of paper and a pen. the paper cost 7.80 pesos more than the pencil and the pen cost 12.40 more than the pad of paper. find the cost of each of the three items
Answer provided by our tutors
let 'x' represent the dost of the pencil, then 'x+7.8' represents the cost of the paper and 'x+7.8+12.4' represents the cost of the pen
76.6 = x + x+7.8 + x+7.8+12.4
solving for 'x' we have x=16.2
16.2 + 7.8 = 24.
16.2 + 7.8 + 12.4 = 36.4
the pencil costs 16.2 pesos
the paper cost 24. pesos
the pen cost 36.4 pesos