document.write( "Question 1016940: You have received test scores of 83, 75, 81, and 74 recently. You have to get a B- 80%average for the course. What must your fifth and final test score be to get this average?
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Algebra.Com's Answer #633280 by Cromlix(4381)![]() ![]() You can put this solution on YOUR website! Hi there, \n" ); document.write( "Total for first 4 tests:- \n" ); document.write( "83 + 75 + 81 + 74 \n" ); document.write( "= 313 \n" ); document.write( "To get an average of 80 for fifth \n" ); document.write( "and final test \n" ); document.write( "Total must be 5 x 80 \n" ); document.write( "= 400 \n" ); document.write( "So, 400 - 313 = 87 \n" ); document.write( "A test score of 87 is required \n" ); document.write( "to get an average of 80 overall. \n" ); document.write( "Hope this helps :-) \n" ); document.write( " |