document.write( "Question 1051522: Isaiah has 7.15 in dimes and nickels. He has a total of 91 coins
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Algebra.Com's Answer #666997 by Boreal(15235)\"\" \"About 
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x=dimes
\n" ); document.write( "y=nickels
\n" ); document.write( "x+y=91; that is a count of the coins.
\n" ); document.write( ".10x+.05y=7.15; this is a count of the money
\n" ); document.write( "multiply the bottom by -20, to make the second term -1 y, because then we can eliminate y
\n" ); document.write( "-2x-y=-143.0
\n" ); document.write( "-x=-52
\n" ); document.write( "y=52 dimes or $5.20
\n" ); document.write( "x=39 nickels or $1.95
\n" ); document.write( "They sum to $7.15.
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