document.write( "Question 959819: how to total 21 using the numbers 15, 9, 7, 2 \n" ); document.write( "
Algebra.Com's Answer #586711 by Edwin McCravy(20059)\"\" \"About 
You can put this solution on YOUR website!
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document.write( "You have to use the \"integer part\" function, sometimes called the\r\n" );
document.write( "\"floor function\".  For positive numbers it's the \"round down\" function,\r\n" );
document.write( "which means you round down to the largest integer that does not exceed\r\n" );
document.write( "the number you're rounding down.\r\n" );
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document.write( "int(15*9/7+2) = int(21.2857142857) = 21\r\n" );
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document.write( "That's the best you can do.\r\n" );
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document.write( "Edwin
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