<PRE><B>Question 986602</B>
.
N=number of nickels; D=number of dimes
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D=N+3 Three more dimes than nickels. 
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$0.05N+$0.10D=$1.80 Convert number of coins to dollar value.
$0.05N+$0.10(N+3)=$1.80
$0.05N+$0.10N+$0.30=$1.80
$0.15N=$1.50
N=10 He has 10 nickels
D=N+3=10+3=13
ANSWER: He has 13 dimes
.
CHECK:
$0.05N+$0.10D=$1.80
$0.05(10)+$0.10(13)=$1.80
$0.50+$1.30=$1.80
$1.80=$1.80




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