Question

Sally has all dimes and quarters in her purse. There are 45 coins in total. She has $7.80. Find how many dimes and quarters she has. a) Dimes: 20, Quarters: 25 b) Dimes: 15, Quarters: 30 c) Dimes: 25, Quarters: 20 d) Dimes: 30, Quarters: 15

Answer 1

d + q = 45---------->.25d + .25q = 11.25

.10d + .25q = 7.80--->.10d + .25q = 7.80

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.15d = 3.45

d = 23, q = 22

Sally has 23 dimes and 22 quarters.