document.write( "Question 667939: I have an 82 average in Math, and I just got a 78% on a quiz. If quizzes are 35% of my grade, what is my new average?
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Algebra.Com's Answer #415295 by ankor@dixie-net.com(22740)\"\" \"About 
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I have an 82 average in Math, and
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\n" ); document.write( "Then the average must by 65% of the grade
\n" ); document.write( "35/100 = 7/20
\n" ); document.write( "65/100 = 13/20
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\n" ); document.write( "Using the ratio 13:7 and assume 20 grades
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\n" ); document.write( "\"%2813%2882%29+%2B+7%2878%29%29%2F20\" = 80.6% is the new average\r
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