document.write( "Question 1151163: the ratio of girls to boys at a middle school is 8:9.how many boys are in the school of there are 340 students in total? \n" ); document.write( "

Algebra.Com's Answer #772813 by ikleyn(52803) $\"\"$ $\"About$

You can put this solution on YOUR website!
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\n" ); document.write( "\n" ); document.write( " @greenestamps just showed you one good way to start and to solve the problem.\r
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\n" ); document.write( "\n" ); document.write( " Another way is THIS\r
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document.write( "Let x be the number of boys.\r\n" );
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document.write( "Then the number of girls is  (340-x), and you can write the proportion\r\n" );
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document.write( "     = .\r\n" );
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document.write( "From the proportion,\r\n" );
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document.write( "    9*(340-x) = 8x\r\n" );
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document.write( "    9*340 = 8x + 9x\r\n" );
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document.write( "    9*340 = 17x\r\n" );
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document.write( "Next divide both sides by 17\r\n" );
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document.write( "    9*20 = x\r\n" );
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document.write( "    x = 180   boys.    ANSWER\r\n" );
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\n" ); document.write( "\n" ); document.write( "Solved.\r
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