<PRE><B>Question 948715</B>
N=number of nickels; D=number of dimes=4N
$0.05N+$0.10D=$3.60 Substitute for D
$0.05N+$0.10(4N)=$3.60
$0.05N+$0.40N=$3.60
$0.45N=$3.60 Divide each side by $0.45
N=8 ANSWER 1: There were 8 nickels
D=4N=4(8)=32 ANSWER 2: There were 32 dimes
CHECK
$0.05N+$0.10D=$3.60
$0.05(8)+$0.10(32)=$3.60
$0.40+$3.20=$3.60
$3.60=$3.60</PRE>