If he'll have 5 tests and the average is 90, this means that the scores of each test added must be equal to 90 * 5 or 450.
450 = 90 + 82 + 95 + 86 + x
450 = 353 + x
97 = x which means that he must get a 97% on the fifth test to have an average of 90%
Answer:
C. 1 mi per 12 min
Step-by-step explanation:
1x5= 5 miles
12x5=60 minutes
Answer:3533