Raymond B. answered 09/29/21
Math, microeconomics or criminal justice
D + Q = 15
10D + 25Q = 285
10D +10Q = 150
15Q = 135
Q =135/15 = 9 quarters
D =15-9 = 6 dimes
6(10)+ 9(25) = 60+ 225 = 285
Maurice C.
asked 09/29/21If Alfonso has 15 quarters and dimes in his pocket, and they have a combined value of 285, how man of each coin does he have?
Raymond B. answered 09/29/21
Math, microeconomics or criminal justice
D + Q = 15
10D + 25Q = 285
10D +10Q = 150
15Q = 135
Q =135/15 = 9 quarters
D =15-9 = 6 dimes
6(10)+ 9(25) = 60+ 225 = 285
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