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29-11-2017
Mathematics

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Geardo has $2.50 in quarters, dimes, and nickels. If he has 18 coins how many of each chin does he have?

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dwightkschrute1 dwightkschrute1

29-11-2017

10d + 25q + 5n = 250 (cents)
5(2d + 5q + n) =250
2d + 5q + n = 50

d + q + n = 18 (coins)

Three unknowns and two equations ==> many answers

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