document.write( "Question 736992: There are 50 students in a middle school chorus.
\n" ); document.write( "The ratio of bous to girls in the chorus is 2:3.
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Algebra.Com's Answer #450104 by jim_thompson5910(35256)\"\" \"About 
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let b = # of boys, g = # of girls\r
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\n" ); document.write( "\n" ); document.write( "b+g = 50 ---> g = 50-b\r
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\n" ); document.write( "\n" ); document.write( "2/3 = b/g\r
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\n" ); document.write( "\n" ); document.write( "2/3 = b/(50-b)\r
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\n" ); document.write( "\n" ); document.write( "2(50-b) = 3b\r
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\n" ); document.write( "\n" ); document.write( "100 - 2b = 3b\r
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\n" ); document.write( "\n" ); document.write( "-2b = 3b-100\r
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\n" ); document.write( "\n" ); document.write( "-2b-3b = -100\r
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\n" ); document.write( "\n" ); document.write( "-5b = -100\r
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\n" ); document.write( "\n" ); document.write( "b = (-100)/(-5)\r
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\n" ); document.write( "\n" ); document.write( "b = 20\r
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\n" ); document.write( "\n" ); document.write( "g = 50 - b\r
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\n" ); document.write( "\n" ); document.write( "g = 50 - 20\r
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\n" ); document.write( "\n" ); document.write( "g = 30\r
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\n" ); document.write( "\n" ); document.write( "There are 30 girls and 50 members total\r
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\n" ); document.write( "\n" ); document.write( "So the ratio is 30:50 ---> 3:5
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