The coins in the store s cash register total $12.50. The cash register contains only nickels, dimes, and quarters. There are twice as many dimes as nickels. There are also twice as many quarters as dimes. How many quarters are in the cash register?

Question

Jesse Snow

Mathematics

20 October, 03:42

The coins in the store s cash register total $12.50. The cash register contains only nickels, dimes, and quarters. There are twice as many dimes as nickels. There are also twice as many quarters as dimes. How many quarters are in the cash register?

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Answers (1)

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Madilynn · Answer 1

Nickels is 0,05 of dolar - n

dimes is 0,1 o dolar - d

quarters is 0,25 of dolar - q

dimes = 2nickels

d=2n

quarters=2dimes

q=2d=4n

12,5=n (0,05) + 2n (0,1) + 4n (0,25)

12,5=0,05n+0,2n+n

12,5=1,25n

n=10

q=4n=40

There are 40 quarters