document.write( "Question 586857: You have taken 4 tests and have an average of 75 points. If you score 100 on each of the rest of the tests, how many more tests do you need to take to raise your average to 80 points? \n" ); document.write( "

Algebra.Com's Answer #373915 by scott8148(6628) $\"\"$ $\"About$

You can put this solution on YOUR website!
(4 * 75) + (x * 100) = (4 + x) * 80 \n" ); document.write( "

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