document.write( "Question 949991: 7 of the 20 children in a group were boys.what percentage of them are boys? \n" ); document.write( "
Algebra.Com's Answer #580013 by MathLover1(20850)\"\" \"About 
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\n" ); document.write( "if \"7\" of the \"20\" children in a group were boys, then\r
\n" ); document.write( "\n" ); document.write( "\"x\"%=\"x%2F100\" of the \"20\" children were \"7\" boys\r
\n" ); document.write( "\n" ); document.write( "so, percentage of boys is: \r
\n" ); document.write( "\n" ); document.write( "\"%28x%2F100%2920=7\"...solve for \"x\"\r
\n" ); document.write( "\n" ); document.write( "\"%28x%2Fcross%28100%295%29cross%2820%291=7\"\r
\n" ); document.write( "\n" ); document.write( "\"x%2F5=7\"\r
\n" ); document.write( "\n" ); document.write( "\"x=7%2A5\"\r
\n" ); document.write( "\n" ); document.write( "\"x=35\" \r
\n" ); document.write( "\n" ); document.write( "answer: \"35\"% of boys\r
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