document.write( "Question 617524: 80 students are graduating from Johnson HS. If the ratio of the grils to boys is 5:4, how many boys are in the class \n" ); document.write( "
Algebra.Com's Answer #388384 by Maths68(1474)\"\" \"About 
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Ratio of the girls to boys = 5:4 = 5/4
\n" ); document.write( "5+4=9 means 4 out of 9 are boys
\n" ); document.write( "So
\n" ); document.write( "Boys = (4/9)(180)=4(20)=80
\n" ); document.write( "Girls = 180-80=100 \r
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\n" ); document.write( "\n" ); document.write( "Check
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\n" ); document.write( "Girls/Boys = 100/80 = 10/8 = 5/4=5:4
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