document.write( "Question 736992: There are 50 students in a middle school chorus.
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document.write( "The ratio of bous to girls in the chorus is 2:3.
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document.write( "What is the ratio of girls to the total number of chorus
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document.write( "members? \n" );
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Algebra.Com's Answer #450104 by jim_thompson5910(35256)![]() ![]() ![]() You can put this solution on YOUR website! let b = # of boys, g = # of girls\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "b+g = 50 ---> g = 50-b\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "2/3 = b/g\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "2/3 = b/(50-b)\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "2(50-b) = 3b\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "100 - 2b = 3b\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "-2b = 3b-100\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "-2b-3b = -100\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "-5b = -100\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "b = (-100)/(-5)\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "b = 20\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "g = 50 - b\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "g = 50 - 20\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "g = 30\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "There are 30 girls and 50 members total\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "So the ratio is 30:50 ---> 3:5 \n" ); document.write( " |