document.write( "Question 1168506: A student scored 66, 81, and 96 on three algebra tests. What must he score on the fourth test in order to have an average grade of at least 85? \n" ); document.write( "

Algebra.Com's Answer #793081 by ikleyn(52802) $\"\"$ $\"About$

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document.write( " >= 85.\r\n" );
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document.write( "Solve this inequality and find x\r\n" );
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document.write( "66 + 81 + 96 + x = 4*85 = 340\r\n" );
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document.write( "x >= 340 - 66 - 81 - 96 =  97.\r\n" );
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document.write( "ANSWER.  The student' score   must be at least 97 to get the goal.\r\n" );
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\n" ); document.write( "\n" ); document.write( "To see many other similar solved problems, look into the lessons\r
\n" ); document.write( "\n" ); document.write( "    - Solved problems on average scores, weight, height and temperature\r
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