document.write( "Question 1204325: Bobo's average for six mathematics tests is 97%. He made the same grade on each of the first five tests. His score on the last test was 12 points lower than the first five scores. What was Bobo's score on the last test? \n" ); document.write( "

Algebra.Com's Answer #840495 by ikleyn(52799) $\"\"$ $\"About$

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document.write( "x scores for the last, 6th test;\r\n" );
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document.write( "(x+12) scores for each of the first five tests.\r\n" );
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document.write( "An equation for x\r\n" );
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document.write( "     = 97.\r\n" );
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document.write( "Solve by simplifying, step by step\r\n" );
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document.write( "    5*(x+12) + x = 6*97\r\n" );
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document.write( "    5x + 60 + x = 582\r\n" );
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document.write( "    6x = 582 - 60\r\n" );
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document.write( "    6x = 522\r\n" );
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document.write( "     x = 522/6 = 87.\r\n" );
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document.write( "ANSWER.  His score on the last, 6-th test, is 87.\r\n" );
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\n" ); document.write( "\n" ); document.write( "It is a typical problem on average.\r
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\n" ); document.write( "\n" ); document.write( "To see many other similar (and different) 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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