Question 523187
Danika has $0.78 in nickels and pennies. The number of pennies that she has is one more than twice the number of nickels. Find how many of each type of coin she has.
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Value Equation: p + 5n = 78 cents
Quantity Eq::: p = 2n+1 coins
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Substitute for "p" and solve for "n":
2n+1 + 5n = 78
7n = 77
n = 11 (# of nickels)
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solve for "p":
p = 2n + 1
p = 2*11+1 = 23 (# of pennies)
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Cheers,
Stan H.
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