document.write( "Question 622969: after taking 4 quizzes, your average is 77 out of 100. what must your average score be on the next five quizzes to increase your average to 82.
\n" ); document.write( " I tried 83 because if you multiply by 5 then add 77 divide it by 6 it equals 82. But as you can tell i got it wrong. Thanks for your time \n" ); document.write( "

Algebra.Com's Answer #391769 by Alan3354(69443) $\"\"$ $\"About$

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after taking 4 quizzes, your average is 77 out of 100. what must your average score be on the next five quizzes to increase your average to 82.
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\n" ); document.write( "82 = (4*77 + 5*Avg5)/(4 + 5)
\n" ); document.write( "(308 + 5*Avg5)/9 = 82
\n" ); document.write( "308 + 5Avg5 = 738
\n" ); document.write( "5Avg5 = 430
\n" ); document.write( "Avg5 = 86 \n" ); document.write( "

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