document.write( "Question 204140: 70% of a class scored at least 70 on a math test, of the remainig class 60% scored 60-69. What percent of the entire class scored less than 60%. \n" ); document.write( "

Algebra.Com's Answer #154137 by RAY100(1637) $\"\"$ $\"About$

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Let x = total class.
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\n" ); document.write( "1st group is 70% of x= .7x,,,,,remainder is (1-.7)x = .3x
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\n" ); document.write( "2nd group is 60% of remainder,,,or .60*.3x = .18x
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\n" ); document.write( "final remainder is ( 1-.7-.18)x = .12x ,,,(.3-.18=.12 also)
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\n" ); document.write( "This is 12 % of original
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