Lizzy has 30 coins that total $4.80. All of her coins
are dimes, D, and quarters, Q. Which system of
equations models this situation?
1) D+Q=4.80
.10D +.25Q = 30
2) D+Q=30
.10D +.25Q = 4.80
3) D+Q=30
.25D +.10Q = 4.80
4) D+Q = 4.80
.25D +. 10Q = 30
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