Problema Solution
Lucy has 24 coins consisting of nickels and quarters amounting to $3.40. How many coins of each kind does she have?
Answer provided by our tutors
1 nickle = 5 cents
1 quarter = 25 cents
let
n = the number of nickles
q = the number of quarter
Lucy has 24 coins consisting of nickels and quarters amounting to $3.40 = 340 cents
n + q = 24
5n + 25q = 340
by solving the system of equations we find
n = 13 nickles
q = 11 quarters
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