document.write( "Question 1092835: Tim has twice as much money in nickels as in dimes. He has 30 coins in all. How many of each coin does he have?
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Algebra.Com's Answer #707436 by JoelSchwartz(130)![]() ![]() ![]() You can put this solution on YOUR website! x=the number of nickels \n" ); document.write( "y=the number of dimes \n" ); document.write( ".05x=2(.1y) \n" ); document.write( ".05x=.2y \n" ); document.write( "x+y=30 \n" ); document.write( "x=30-y \n" ); document.write( ".05(30-y)=.2y \n" ); document.write( "1.5-.05y=.2y \n" ); document.write( "1.5=.25y \n" ); document.write( "6=y \n" ); document.write( "x=30-6 \n" ); document.write( "x=24 \n" ); document.write( " |