document.write( "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
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Algebra.Com's Answer #575941 by stanbon(75887)\"\" \"About 
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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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\n" ); document.write( "Equations:
\n" ); document.write( "d + q = 40 coins
\n" ); document.write( "10d + 25q = 775 cents
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\n" ); document.write( "Modify for elimination::
\n" ); document.write( "5d + 5q = 200
\n" ); document.write( "2d + 5q = 155
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\n" ); document.write( "Subtract and solve for \"d\"::
\n" ); document.write( "3d = 45
\n" ); document.write( "d = 15 (# of dimes)
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\n" ); document.write( "Cheers,
\n" ); document.write( "Stan H.
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