document.write( "Question 998872: Joe has scores of 87, 83, and 90 on three tests. What is the lowest score he can get on the next test to have an average of 87. \n" ); document.write( "
Algebra.Com's Answer #616606 by Cromlix(4381)\"\" \"About 
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Hi there,
\n" ); document.write( "To achieve an average of 87 on
\n" ); document.write( "4 tests, Joe must score a total
\n" ); document.write( "of 87 x 4 = 348
\n" ); document.write( "87 + 83 + 90 = 260
\n" ); document.write( "348 - 260 = 88.
\n" ); document.write( "Joe must score at least 88 in
\n" ); document.write( "his 4th test to attain an overall
\n" ); document.write( "average of 87 for the 4 tests.
\n" ); document.write( "Hope this helps :-)
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