document.write( "Question 435032: nineteen coins consisting of quarters and half-dollars amount to 6.50. find the amount of coins of each kind. \n" ); document.write( "
Algebra.Com's Answer #301186 by robertb(5830)\"\" \"About 
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0.25q + 0.50(19-q) = 6.50
\n" ); document.write( "==> 0.25q + 9.5 - 0.50q = 6.5
\n" ); document.write( "==> -0.25q = -3
\n" ); document.write( "==> q = 12, the number of quarters, and
\n" ); document.write( "19-q = 19-12 = 7, the number of half-dollars.
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