document.write( "Question 156070: Torry took 6 tests, she had an average 97. First 5 tests had the same score. The last test had 12 points less. What was her last test score? \n" ); document.write( "

Algebra.Com's Answer #114938 by jojo14344(1513) $\"\"$ $\"About$

You can put this solution on YOUR website!
If Torry has an $\"Average\"$ of 97 for $\"6Tests\"$ , so his total will be $\"6%2A97=highlight%28582%29points\"$
\n" ); document.write( "Now, let the score for each test be $\"X\"$ . SO, $\"T%5B1%5D=T%5B2%5D=T%5B3%5D=T%5B4%5D=T%5B5%5D=X\"$ . And the condition that the last Test, $\"T%5B6%5D\"$ is 12 less, so the score is $\"X-12\"$ . Therefore adding the 6 Tests' score will total to $\"highlight%28582%29\"$ . To show:
\n" ); document.write( " $\"T%5B1%5D%2BT%5B2%5D%2BT%5B3%5D%2BT%5B4%5D%2BT%5B5%5D%2BT%5B6%5D=582\"$
\n" ); document.write( " $\"X%2BX%2BX%2BX%2BX%2BX-12=582\"$
\n" ); document.write( " $\"6X=582%2B12\"$
\n" ); document.write( " $\"6X=594\"$ ----> $\"cross%286%29X%2Fcross%286%29=cross%28594%2999%2Fcross%286%29\"$
\n" ); document.write( " $\"X=99\"$ --------------------------> SCORE for the 1st 5 tests $\"T%5B1%5D-T%5B5%5D\"$
\n" ); document.write( " $\"99-12=87\"$ ---------------------> SCORE on the last test $\"T%5B6%5D\"$
\n" ); document.write( "In doubt? Let's add the total tests & the should equal to $\"highlight%28582%29\"$ :
\n" ); document.write( " $\"99%2B99%2B99%2B99%2B99%2B87=582\"$
\n" ); document.write( " $\"582=582\"$
\n" ); document.write( "Thank you,
\n" ); document.write( "Jojo \n" ); document.write( "

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