document.write( "Question 977244: A student has an average of 80 in his first three exams. What score must he get in the fourth exam to raise his average to 85? \n" ); document.write( "
Algebra.Com's Answer #598758 by solver91311(24713)\"\" \"About 
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\n" ); document.write( "\n" ); document.write( "If his average on the first three exams is 80, then his total score for those three exams must be 3 times 80. If he wants an 85 average after one more test, then the total for all 4 exams must be 4 times 85.\r
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\n" ); document.write( "\n" ); document.write( "John
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\n" ); document.write( "My calculator said it, I believe it, that settles it\r
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