document.write( "Question 1202710: The ratio of boys to girls among the students who signed up for a basketball competition is 4:3. If 3 boys drop out of the competition and 4 girls join, there will be the same number of boys and girls. Evaluate the number of students who signed up for the basketball competition. \n" ); document.write( "

Algebra.Com's Answer #837776 by Edwin McCravy(20056) $\"\"$ $\"About$

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document.write( "I think Theo's method is better.  It's easier to set up word problems when\r\n" );
document.write( "you use more than one unknown.  Ikleyn always prefers to use one unknown if\r\n" );
document.write( "possible.  But the system:\r\n" );
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document.write( "is more like what the words say.\r\n" );
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document.write( "Now I would cross-multiply both equations to eliminate fractions:\r\n" );
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document.write( "Simplify the second equation:\r\n" );
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document.write( "Substitute g+7 for b in the first equation:\r\n" );
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document.write( "21 girls, 28 boys, 21+28=49 students\r\n" );
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document.write( "Edwin

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