document.write( "Question 865048: Ms. Norwalk's math class took the same test as Mr. Ellsworth's students. Ms.Norwalk's class has 20 students, and the average test score was 90%. The average on Mr. Ellsworth's class was 80%. If you combine the classes, the average test score was 84%. How many students does Mr. Ellsworth have in his math class? \n" ); document.write( "

Algebra.Com's Answer #521462 by richwmiller(17219) $\"\"$ $\"About$

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20*.90+.80x=.84(x+20)
\n" ); document.write( "x=30 in Mr. Ellsworth's class
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