Problema Solution
Isaac has 43 nickels and quarters in his wallet. If his change is worth $7.75, how many of each kind of coin does Isaac have?
Answer provided by our tutors
1 nickel = 5 cents
1 quarter = 25 cents
$7.75 = 775 cents
Let 'n' the number of nickels and 'q' the number of quarters.
n + q = 43
5n + 25q = 775
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click here to see the system of equations solved for n and q
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n = 15 nickels
q = 28 quarters
Isaac has 15 nickles and 28 quarters.