document.write( "Question 34375: On the first day of school, the percentage of boys in a particular class is 60%. During the school year, six girls move away, and are replaced in the class by six boys; this makes the class roster 75% boys. Find the number of boys and girls in the class on the first day of school. \n" ); document.write( "
Algebra.Com's Answer #20671 by checkley71(8403)\"\" \"About 
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b=.6t b=boys t=total number in class
\n" ); document.write( "b+6=.75t substituting .6t for b in the second equation we get
\n" ); document.write( ".6t+6=.75t ot 6=.15t or t=6/.15 or t=40 therefore .6*40=boys or .6*40=24 boys and 16 girls (40-24) at the beginning of school.\r
\n" ); document.write( "\n" ); document.write( "24+6=30 OR .75*40=30
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