SOLUTION: A truck with 54-in.-diameter wheels is traveling at 45 mi/h. How many revolutions per minute do the wheels make? PLEASE HELP ME!!!

Question 1014151: A truck with 54-in.-diameter wheels is traveling at 45 mi/h.
How many revolutions per minute do the wheels make?
PLEASE HELP ME!!!
Found 2 solutions by Boreal, MathTherapy:
Answer by Boreal(15235) (Show Source): You can put this solution on YOUR website!
54 inch diameter wheels are 54*pi inches in circumference or 54*pi/12 feet per revolution.
at 45 mph, the vehicle is moving at 66 feet per second or 3960 feet per minute.
3960 feet per minute/4.5*pi feet per revolution. Units are revolution per minute.
315.13 revs per minute.
Answer by MathTherapy(10552) (Show Source): You can put this solution on YOUR website!

A truck with 54-in.-diameter wheels is traveling at 45 mi/h.
How many revolutions per minute do the wheels make?
PLEASE HELP ME!!!

280.1126998 ≈ revs per minute

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