alisha12327
contestada

Dan has the same number of nickels and dimes in his piggy bank. If the total amount of those coins is $0.90, how many of each coin does he have?

Respuesta :

TheBlueFox

Hello There!

n - d = 0

5n+10d = 90

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n-d = 0

n+2d = 18

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Subtract and solve for "d":

3d = 18

d = 6 (# of dimes)

n = d = 6 (# of nickels)

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