document.write( "Question 762293: Jerome's score on four tests are 89,71, 87 and 75. What must his score on the next test be so that his average will be 82? \n" ); document.write( "
Algebra.Com's Answer #463843 by 2897696(96)\"\" \"About 
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Average: when you add number together and divide the sum by the total of numbers added.
\n" ); document.write( "let x = unknown test%
\n" ); document.write( "==>add all test% including the unknown/by number of test add= to the average wanted
\n" ); document.write( "Equation:
\n" ); document.write( "(89+71+87+75+x)/5=82
\n" ); document.write( "Solve for x
\n" ); document.write( "322+x=410
\n" ); document.write( "x=78%\r
\n" ); document.write( "\n" ); document.write( "So the test score needed is 78%.
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