document.write( "Question 825895: You will have five tests this marking period. Your test grades so far are: 78, 89, 91, & 95. What must you earn on the fifth test to have a test grade average of 89? \n" ); document.write( "

Algebra.Com's Answer #497717 by ankor@dixie-net.com(22740) $\"\"$ $\"About$

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78, 89, 91, & 95. What must you earn on the fifth test to have a test grade average of 89?
\n" ); document.write( "let x = the 5th grade
\n" ); document.write( " $\"%2878%2B89%2B91%2B95%2Bx%29%2F5\"$ = 89
\n" ); document.write( "multiply both sides by 5, add test scores
\n" ); document.write( "353 + x = 445
\n" ); document.write( "you should be able to handle this now
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