document.write( "Question 864705: In a class of 42 students, the number of boys is 2/5 of the girls. Find the number of boys and girls in the class.
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Algebra.Com's Answer #521203 by ewatrrr(24785) $\"\"$ $\"About$

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document.write( "Hi
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document.write( "      |Multiplying thru by 5 so as all denominators = 1
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document.write( " 5x + 2x = 210
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document.write( "    7x = 210
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document.write( "     x = 30, girls and 12 boys 
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document.write( "and...checking!
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document.write( " 30 + 12 = 42 \n" );
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