83.75 to be exact
or 335/4 to be even more accurate.
(77+83+89+86+x)/5=85 (335+x)/5=85 (335+x)=85*5 335+x=425 x=425-335 x=90 He must get 90% on his fifth test to average 85%.
'77 - '82 .032 '83 - '86 .028
77-85 Impala, 77-90 Caprice, 78-83 Malibu, 78-88 Monte Carlo/El Camino
86-9 = 77
53 percent
86 percent of what?
It depends on your grading system. Normally, a 86 is around a A-.
This is a typical Grading System:96 - 100 Excellent92 - 95 Very Good84 - 91 Good79 - 83 Fair75 - 78 PassBelow 75 - FailureTherefore, 86 is not excellent but it is a good grade.
86 percent of 320 is 275.2.
86 percent of 245 is 210.7
16 83
-12n - 9 = 77 Therefore, -12n = 77+9 = 86 Therefore, n = 86/-12 n = 7.16 recurring (that is, 7.16666..)