math
posted by emma .
Assuming that a table saw blade has a diameter of 12 inches and spins at 3450 revolutions per minute (RPMs),determine how fast the tip of the teeth of the saw blade are traveling in miles per hour.

3450/12= 287.5 RPMs
287.5 min/60 mins = 1 hr
=4.8 RPHR
is that right then? 
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