SOLUTION: Constance has $0.71 in pennies and dimes. The number of pennies exceeds four times the number of dimes by 1. Find the number she has of each kind.

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Question 377639: Constance has $0.71 in pennies and dimes. The number of pennies exceeds four times the number of dimes by 1. Find the number she has of each kind.
Answer by Fombitz(32388) About Me  (Show Source):
You can put this solution on YOUR website!
1.P%2B10D=71
2.P=4D%2B1
Substitute eq. 2 into eq. 1,
4D%2B1%2B10D=71
14D%2B1=71
14D=70
highlight%28D=5%29
Then from eq. 2,
P=4%285%29%2B1
highlight%28P=21%29