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Mathematics 7 Online
OpenStudy (anonymous):

In a change jar, Tom has nickels and dimes. The number of nickels is two times the number of dimes and the total amount of money in the jar is $1.20. How many dimes are in the jar? A. 6 B. 12 C. 10 D. 24

OpenStudy (anonymous):

A. 6

OpenStudy (anonymous):

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OpenStudy (anonymous):

Why thanks. And heck yeah~

OpenStudy (wolf1728):

n = 2d .05N + .10d = $1.20 .05*2d + .10d = $1.20 .10d + .10d = 1.20 .20d = 1.20 d = 6

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