document.write( "Question 1185474: Akshi has five exams scores of 66,64,84,58,and 79. In her Latin class. What score does she need on the final exam to have a mean grade of 70? Round your answer to two decimal places,if necessary. ( ALL exams have a maximum of 100 points.) \n" ); document.write( "

Algebra.Com's Answer #816302 by ikleyn(52799) $\"\"$ $\"About$

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\n" ); document.write( "Akshi has five exams scores of 66,64,84,58,and 79. In her Latin class. What score does she need on the final exam
\n" ); document.write( "to have a mean grade of 70? Round your answer to two decimal places,if necessary. ( ALL exams have a maximum of 100 points.)
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document.write( "Let the unknown score at the 6-th exam be x.\r\n" );
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document.write( "Then you have this equation for x, which expresses the average 70 of the six exams\r\n" );
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document.write( "     = 70.\r\n" );
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document.write( "Multiply both sides by 6 and simplify\r\n" );
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document.write( "    x = 70*6 - 66 - 64 - 84 - 58 - 79 = 69.\r\n" );
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document.write( "ANSWER.  The minimum score she needs on the final exam to get average 70 is 69.\r\n" );
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\n" ); document.write( "\n" ); document.write( "Note that @josgarithmetic has an error in his setup equation   (just fixed after my note).\r
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\n" ); document.write( "\n" ); document.write( "@greenestamps has an error in his calculations   (just fixed after my note).\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
\n" ); document.write( "\n" ); document.write( "    - Solved problems on average scores\r
\n" ); document.write( "\n" ); document.write( "    - Solved problems on average age \r
\n" ); document.write( "\n" ); document.write( "    - Miscellaneous problems on average values \r
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\n" ); document.write( "\n" ); document.write( "Consider these lessons as your textbook, handbook, tutorials and (free of charge) home teacher.\r
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