document.write( "Question 475411: 2/5 of the students are boys. there are 12 girls. how many students in all? \n" ); document.write( "

Algebra.Com's Answer #326031 by Tatiana_Stebko(1539) $\"\"$ $\"About$

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if $\"2%2F5\"$ of the sudents are boys, then $\"1-2%2F5=3%2F5\"$ of the students are girls
\n" ); document.write( "Have ratio
\n" ); document.write( " $\"3%2F5\"$ - $\"12\"$
\n" ); document.write( " $\"1\"$ - $\"x\"$
\n" ); document.write( "Equation
\n" ); document.write( " $\"%283%2F5%29x=12\"$ multiply by $\"5\"$
\n" ); document.write( " $\"3x=12%2A5\"$
\n" ); document.write( " $\"3x=60\"$ divide by 3
\n" ); document.write( " $\"x=60%2F3\"$
\n" ); document.write( " $\"x=20\"$ students in the group \n" ); document.write( "

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