document.write( "Question 713465: Manuel has scored 80,64,77 and on his previous three tests. What score does he need on his next test so that his average(mean)is 79?
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Algebra.Com's Answer #438441 by persian52(161)\"\" \"About 
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He needs 95
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\n" ); document.write( "80+64+77+95 = 316 / 4 = 79\r
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