Asked by Jon

if the average speed of ALL 5 coasters is no more than 91 mph then that last coaster has to be 100 mph to reach a speed of 91 on average. if superman goes at 99 then the average would be only 90.8 if it's at 100, the average would be 91 exactly
Answered by Damon
83+85+92+95+s=5(91)
s = 455-355
s = 100
I agree
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