document.write( "Question 100488: April has 137 coins in her piggy bank for a total of $10. If the only two types of coins she has are dimes and nickels, how many of each type of coin does she have?
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document.write( "x+y=137
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document.write( ".05x+ 0.1y=10 \r
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document.write( "-0.1x - 0.1y = -13.7
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document.write( ".05x + 0.1y = 10
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document.write( "-.05x = -3.7
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document.write( "x= -74\r
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document.write( "x+y=137
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document.write( "-74 + y =137
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document.write( "y = 211 \n" );
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Algebra.Com's Answer #73167 by scott8148(6628)![]() ![]() You can put this solution on YOUR website! the x should be positive 74 (negative divided by a negative)\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "that makes y 137-74 or 63\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "$6.30+$3.70=$10 \n" ); document.write( " |