SOLUTION: Every evening Jenna empties her pockets. And puts her change in a jar at the end of the week she counts her money. One week she had 40 coins all dimes and quarters. When she added
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Question 944600: Every evening Jenna empties her pockets. And puts her change in a jar at the end of the week she counts her money. One week she had 40 coins all dimes and quarters. When she added them up she had a total of 7.75. How many dimes where there
You can put this solution on YOUR website! One week she had 40 coins all dimes and quarters. When she added them up she had a total of 7.75. How many dimes were there?
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Equations:
d + q = 40 coins
10d + 25q = 775 cents
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Modify for elimination::
5d + 5q = 200
2d + 5q = 155
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Subtract and solve for "d"::
3d = 45
d = 15 (# of dimes)
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Cheers,
Stan H.
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