document.write( "Question 933584: In history class, the girl to boy ratio is 9 to 8.\r
\n" ); document.write( "\n" ); document.write( "If there are a total of 68 students, how many girls are there?
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Algebra.Com's Answer #566959 by ptaylor(2198)\"\" \"About 
You can put this solution on YOUR website!
Let x=number of girls
\n" ); document.write( "Girl to boy ratio is 9 to 8 means that for every (9+8=17) students 9/17 are girls. So
\n" ); document.write( "(9/17)*68=36--number of girls
\n" ); document.write( "Another way:
\n" ); document.write( "9:8=x:(68-x) or
\n" ); document.write( "(9/8)=x/(68-x) Cross-multiply
\n" ); document.write( "9(68-x)=8x
\n" ); document.write( "612-9x=8x
\n" ); document.write( "17x=612
\n" ); document.write( "x=36--number of girls\r
\n" ); document.write( "\n" ); document.write( "Did this help?--ptaylor\r
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