document.write( "Question 1171953: Manuel has scored 76,76, and 90 on his previous three tests. What score does he need on his next test so that his average (mean) is 75?
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Algebra.Com's Answer #796863 by ikleyn(52781) $\"\"$ $\"About$

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document.write( "     = 75\r\n" );
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document.write( "    76 + 76 +90 + x = 4*75 = 300\r\n" );
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document.write( "    x = 300 - (76 + 76 + 90) = 58.    ANSWER\r\n" );
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\n" ); document.write( "\n" ); document.write( "To see many other similar problems solved, look into the lessons\r
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