document.write( "Question 161472: Moolah has 27 coins that are all dimes and quarters. The value of th coins is $4.35. How many dimes and how many quarters does Moolah have? \n" ); document.write( "
Algebra.Com's Answer #118931 by nerdybill(7384)\"\" \"About 
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Let d = number of dimes
\n" ); document.write( "and q = number of quarters
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\n" ); document.write( "From \"Moolah has 27 coins\" we get equation 1:
\n" ); document.write( "d+q = 27
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\n" ); document.write( "From \"The value of th coins is $4.35\" we get equation 2:
\n" ); document.write( ".10d + .25q = 4.35
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\n" ); document.write( "Solving equation 1 for d:
\n" ); document.write( "d+q = 27
\n" ); document.write( "d = 27-q
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\n" ); document.write( "Substitute the above into equation 2 and solve for q:
\n" ); document.write( ".10d + .25q = 4.35
\n" ); document.write( ".10(27-q) + .25q = 4.35
\n" ); document.write( "2.7 - .10q + .25q = 4.35
\n" ); document.write( ".15q = 1.65
\n" ); document.write( "q = 11 (number of quarters)
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\n" ); document.write( "Substitute the above back into equation 1 and solve fo d:
\n" ); document.write( "d+q = 27
\n" ); document.write( "d+11 = 27
\n" ); document.write( "d = 16 (number of dimes)\r
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