document.write( "Question 1006932: lisa has $3.80 worth of coins in her wallet, consisting of nickels, dimes, and quarters. she has twice as many nickels as dimes, and 3 times as many quarters as dimes.Write an equation that can be used to find how many of each coin Lisa has. \n" ); document.write( "

Algebra.Com's Answer #623030 by ikleyn(52798) $\"\"$ $\"About$

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\n" ); document.write( "lisa has $3.80 worth of coins in her wallet, consisting of nickels, dimes, and quarters.
\n" ); document.write( "She has twice as many nickels as dimes, and 3 times as many quarters as dimes. Write an equation that can be used to find how many of each coin Lisa has.
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document.write( "5n + 10d + 25q = 380,\r\n" );
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document.write( "n = 2d,\r\n" );
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document.write( "q = 3d.\r\n" );
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document.write( "Combine it together:\r\n" );
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document.write( "5*(2d) + 10d + 25*(3d) = 380, or\r\n" );
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document.write( "10d + 10d + 75d = 380, or\r\n" );
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document.write( "95d = 380. \r\n" );
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document.write( "Hence, d =  = 4 dimes.\r\n" );
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document.write( "Now, n = 2d = 8 nickels and q = 3d = 12 quarters.\r\n" );
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