Question 129279
P = pennies
N = nickels
P+N = 1140
P+5N = 1700  (each nickel is 5 cents)
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P = 1140 - N
Sub for P in 2nd eqn
(1140 - N) + 5N = 1700
1140 + 4N = 1700
4N = 560
N = 140
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P = 1140 - N
P = 1000