document.write( "Question 937670: If I have a 90 average and I get a 58 and a 72 on quizzes worth 55 percent of my grade what is my new average?
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Algebra.Com's Answer #571064 by TimothyLamb(4379)\"\" \"About 
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assume that the score of 90 is worth 45% of your grade:
\n" ); document.write( "100 - 55 = 45%
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\n" ); document.write( "g = 0.45*90 + 0.55*((58+72)/2)
\n" ); document.write( "g = 76.25%
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