Question 827414
"A collection of  quarters and nickels is worth $1.25. There are 13 coins in all. How many of each are there?"
 
 I know you set it up like so
.25Q+.05N=13
And then you multiply by 100.
25Q+5N=125
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13 coins --> q + n = 13
$1.25 --> 25q + 5n = 125