document.write( "Question 1187200: A tip jar at a diner contained $10.00 in coins. It contained 10 more dimes than quarters and twice as many nickels as quarters. How many dimes were in the tip jar? \n" ); document.write( "

Algebra.Com's Answer #818140 by ikleyn(52787) $\"\"$ $\"About$

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\n" ); document.write( "A tip jar at a diner contained $10.00 in coins. It contained 10 more dimes than quarters
\n" ); document.write( "and twice as many nickels as quarters. How many dimes were in the tip jar?
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document.write( "d  dimes,\r\n" );
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document.write( "(d-10)  quarters,\r\n" );
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document.write( "2*(d-10)  nickels.\r\n" );
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document.write( "The total money equation\r\n" );
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document.write( "    5*2(d-10) + 10d + 25*(d-10) = 1000  cents.\r\n" );
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document.write( "Simplify and find d\r\n" );
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document.write( "    10(d-10) + 10d + 25(d-10)   = 1000\r\n" );
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document.write( "    10d - 100 + 10d + 25d - 250 = 1000\r\n" );
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document.write( "            45d                 = 1000 + 100 + 250 \r\n" );
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document.write( "            45d                 = 1350\r\n" );
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document.write( "              d                 = 1350/45 = 30.\r\n" );
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document.write( "ANSWER.  30 dimes.\r\n" );
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