document.write( "Question 862956: percentage for math last term 85% if my score out of 20 marks for the first nine tests were 14 18 16 16 18 15 20 and 19 find my score for the last test out of 20 \n" ); document.write( "
Algebra.Com's Answer #520155 by JulietG(1812)\"\" \"About 
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Total points available are 10 * 20 = 200
\n" ); document.write( "Note that you only have 8 scores noted. Let's call the 9th a 16 (change the equation value if it's more/less)
\n" ); document.write( "Total points already scored = 14+18+16+16+18+15+20+19+16= 152
\n" ); document.write( "Points you want to have = .85 * 200 = 170
\n" ); document.write( "Points you need to get on next test = 18 (170-152)
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