Posted by isabelle on .
Superman the Escape in CAlifornia is the fastest roller coaster in the world. Riders fall 415 feet in 7 seconds. Speeds reach a maximum of 100 miles per hour.
If x represents the average rate of fall of the roller coaster, write an expression to represent the situation. (Hint: Use the distance formula d=rt.)
What is the average rate that riders fall in feet per second?

algebra 
bobpursley,
average rate of fall is average speed.
average speed= distance fell/time 
algebra 
isabelle,
Thanks but this doesnt really help me answer my question.

algebra 
bobpursley,
goodness. what is distance fell, and the time of fall. That is in the problem.

Algebra 
Ysadon,
It is simply:
1.) 415 = 7x
2.) x = 59.3 ft.
Hope this helped.