SOLUTION: Debra saved only dimes and nickles. When she last countes the coins, she noticed there were twice as many dimes as nickles. She had 4.75 in her bank. How many dimes did she have in
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Question 1012784: Debra saved only dimes and nickles. When she last countes the coins, she noticed there were twice as many dimes as nickles. She had 4.75 in her bank. How many dimes did she have in her bank? Answer by macston(5194) (Show Source):
You can put this solution on YOUR website! .
D=dimes; N=nickels=0.5D
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$0.05N+$0.10D=$4.75
$0.05(0.5D)+$0.10D=$4.75
$0.025D+$0.10D=$4.75
$0.125D=$4.75
D=38
ANSWER: She had 38 dimes
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CHECK:
N=0.5D=0.5(38)=19
She had 19 nickels.
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$0.05N+$0.10D=$4.75
$0.05(19)+$0.10(38)=$4.75
$0.95+$3.80=$4.75
$4.75=$4.75
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