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A jar of dimes and quarters contains $2. 55. There are 15 coins in all. How many of each coin are there?
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A jar of dimes and quarters contains $2. 55. There are 15 coins in all. How many of each coin are there?

User Antonio Terreno
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1 Answer

2 votes
Write your equations.

d + q = 15

10d + 25q = 255

Use elimination to get rid of either the d or the q.

-10d -10q = -150

Do the math.

15q = 105

q=7

substitute the q with a 7 in either equations.

d + 7 = 15

d=8

your answer is 8 dimes and 7 quarters.
User Angaj Sharma
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7.4k points
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