document.write( "Question 1056129: At fundraising event for a local kindergarten school, a total of $400 have been collected in three different types of denominations: $5 s, $10 bills and $20 bills. There were four more $10 bills than $20 bills, and there were twice as many $5 bills as $20 bills. Find the number of $5 bills , the number of $10 bills and the number of $20 bills \n" ); document.write( "
Algebra.Com's Answer #671304 by ikleyn(52798)\"\" \"About 
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\n" ); document.write( "At fundraising event for a local kindergarten school, a total of $400 have been collected in three different types of denominations:
\n" ); document.write( "$5 s, $10 bills and $20 bills. There were four more $10 bills than $20 bills, and there were twice as many $5 bills as $20 bills.
\n" ); document.write( "Find the number of $5 bills , the number of $10 bills and the number of $20 bills
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document.write( "x for $20 bills.\r\n" );
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document.write( "Then the number of the $10 bills is (x+4),\r\n" );
document.write( "and  the number of the $5  bills is  2x.\r\n" );
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document.write( " $5 dollar bills contribute 5*(2x)   to the total.\r\n" );
document.write( "$10 dollar bills contribute 10*(x+4) to the total.\r\n" );
document.write( "$10 dollar bills contribute 20*x     to the total.\r\n" );
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document.write( "The equation for the total is\r\n" );
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document.write( "5*(2x) + 10*(x+4) + 20x = 400,   or\r\n" );
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document.write( "10x + 10x + 40 + 20x = 400,   or\r\n" );
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document.write( "40x = 400-40 = 360,\r\n" );
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document.write( "x = \"360%2F40\" = 9.\r\n" );
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document.write( "Answer. There were 9 $20-dollar bills,  9+4 = 13 $10-dollar bills, and 18 $5-dollar bills.\r\n" );
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