8.5 / 5 = 1.7
17.
3/15 17/85 792/3960
No difference. (-8)5 = (-85) = -85
85=32768.
Expressed as a vulgar fraction in its lowest terms, 17/85 is equal to 1/5, or one fifth.
One fifth plus one fifth is two fifths (2/5).
8*8*8*8*8 = 32,768.
It's obviously a fifth, so 20%. If it weren't obvious 17 x 100/85 is the calculation...
one fifth
(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%.
One fifth
one and one-fifth