document.write( "Question 1143128: If Sarah scored an 80,95,75 and an 90 on her first four test , what must she score on her fifth test if she wants An average of 88? \n" ); document.write( "

Algebra.Com's Answer #763889 by ikleyn(52788) $\"\"$ $\"About$

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document.write( " = 88,\r\n" );
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document.write( "80 + 95 + 75 + 90 + x = 5*88\r\n" );
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document.write( "x = 5*88 - (80 + 95 + 75 + 90)\r\n" );
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document.write( "x = 100.     ANSWER\r\n" );
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document.write( "CHECK.    = 88.\r\n" );
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