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Sally has coins in her piggy bank. she has twice as many dimes as she has quarters

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The total number of Dimes that Sally had is: 55.56 dimes.

Algebraic word problems?

Sally has 2 dimes for each quarter, so the coins are grouped in $0.45 groups.

However, $12.50 is not divisible by 45 cents, so you will wind up with a fraction of a coin.

Q=quarters; D=dimes=2Q

$0.10D + $0.25Q = $12.50

Substitute for D.

$0.10(2Q) + $0.25Q = $12.50

$0.20Q + $0.25Q = $12.50

$0.45Q = $12.50

Divide each side by $0.45

Q=27.78...

She had 27.78 quarters.

D=2Q=55.56

She had 55.56 dimes.

Complete question is:

Sally has coins in her piggy bank. She has twice as many dimes as quarters. The total value is $12.50. How many dimes does she have?

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