Problema Solution
Margaret saves 50 cent and 10 cent coins. She has 56 of these coins and their total value is $17.60. How many of each coin type does she have?
Answer provided by our tutors
let 'x' represent the number of 50-cent coins, then '56-x' represents the number of 10-cent coins
17.60 = 0.5x + 0.1(56-x)
solving for 'x' we have x=30
56-30 = 26
Margaret has 30 50-cent coins and 26 10-cent coins