document.write( "Question 900985: Doug received the following scores on his first four tests: 77%, 83%, 89%, and 86%. What score must he get on his fifth test to average 85% for all five tests?
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Algebra.Com's Answer #546374 by Alan3354(69443)\"\" \"About 
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Doug received the following scores on his first four tests: 77%, 83%, 89%, and 86%. What score must he get on his fifth test to average 85% for all five tests?
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\n" ); document.write( "85*5 = 425
\n" ); document.write( "77 + 83 + 89 + 86 = 335
\n" ); document.write( "425 - 335 = 90%
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