<PRE><B>Question 989736</B>
.
N=nickels; P=pennies=4N; D=dimes=5N+1
.
1(P)+5(N)+10(D)=777
1(4N)+5N+10(5N+1)=777
4N+5N+50N+10=777
59N=767
N=13 ANSWER 1: He has 13 nickels.
P=4N=4(13)=52 ANSWER 2: He has 52 pennies.
D=5N+1=5(13)+1=66 ANSWER 3: He has 66 dimes
.
CHECK:
$0.01P+$0.05N+$0.10D=$7.77
$0.01(52)+$0.05(13)+$0.10(66)=$7.77
$0.52+$0.65+$6.60=$7.77
$7.77=$7.77






</PRE>