Sue has $2.20 in dimes and nickels. If she has 13 more dimes than nickels, how many of each coin does she have?

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asked Dec 20, 2018 149k views

1 Answer

Zohidjon Akbarov · Answer 1 · 2018-12-25T19:52:36+0000

10d+5n=220
divide both sides by 5
2d+n=44

d=13+n
sub 13+n for d in other equatin

2(13+n)+n=44
26+2n+n=44
26+3n=44
minus 26 both sides
3n=18
divide both sides by 3
n=6
sub back

d=13+n
d=13+6
d=19

19 dimes
6 nickles

Sue has $2.20 in dimes and nickels. If she has 13 more dimes than nickels, how many of each coin does she have?

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