document.write( "Question 443104: There are 3 boys for every 2 girls in a class of 25. How many girls are there? \n" ); document.write( "

Algebra.Com's Answer #305639 by swincher4391(1107) $\"\"$ $\"About$

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Set up a proportion:\r
\n" ); document.write( "\n" ); document.write( "In a sample of 3:2, you have 5 kids in all.\r
\n" ); document.write( "\n" ); document.write( "So the the ratio of girls to kids in a sample of 5 is 2:5.\r
\n" ); document.write( "\n" ); document.write( "So set up a proportion:\r
\n" ); document.write( "\n" ); document.write( " $\"%282%2F5%29+=+%28x%2F25%29\"$
\n" ); document.write( " $\"5x+=+25%2A2\"$
\n" ); document.write( " $\"5x+=+50\"$
\n" ); document.write( " $\"x+=+10\"$ \r
\n" ); document.write( "\n" ); document.write( "Then there are 10 girls in a class of 25.\r
\n" ); document.write( "\n" ); document.write( "Hope this helps! \n" ); document.write( "

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