document.write( "Question 83959: A student has grades of 89, 96, 88 and 90 on the first four exams in a certain course. What is the lowest(whole number) grade that must be obtained on the fifth exam in order for this student to have an average of more than 92? \n" ); document.write( "
Algebra.Com's Answer #60400 by checkley75(3666)![]() ![]() ![]() You can put this solution on YOUR website! (89+96+88+90+x)/5=92 \n" ); document.write( "(363+x)/5=92 now cross multiply \n" ); document.write( "363+x=460 \n" ); document.write( "x=460-363 \n" ); document.write( "x=97 for the required final test to have an acerage iof 92. \n" ); document.write( "proof \n" ); document.write( "(89+96+88+90+97)/5=92 \n" ); document.write( "460/5=92 \n" ); document.write( "92=92\r \n" ); document.write( "\n" ); document.write( " \n" ); document.write( " |