document.write( "Question 874525: there is a group of boys and girl waiting for the school buses .
\n" ); document.write( "15 girls get on the first bus.The ratio of boys to girls at the stop is now 7:4.
\n" ); document.write( "12 boys get on the next bus.the ratio of boys to girls at the stop is now 1:1
\n" ); document.write( "How many students where there at the stop to start with. \n" ); document.write( "

Algebra.Com's Answer #527562 by ewatrrr(24785) $\"\"$ $\"About$

You can put this solution on YOUR website!

 
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document.write( "Hi
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document.write( " 4b -7g = -105
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document.write( "  b - g = -3
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document.write( "4b-7g = -105
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document.write( " b -g = -3     times -7 add to first
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document.write( "  -3b = -84
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document.write( "    b = 28  and g =31  at the stop to start with
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document.write( "checking
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document.write( " 28/(31-15) = 28/16 = 7/4\r
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