SOLUTION: f a person drives his car at a speed of 75 miles per hour and travels a distance of 270 miles, how long has he been driving?

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Question 213644: f a person drives his car at a speed of 75 miles per hour and travels a distance of 270 miles, how long has he been driving?
Answer by josmiceli(19441) About Me  (Show Source):
You can put this solution on YOUR website!
distance = rate x time
d+=+r%2At
given:
d+=+270 mi
r+=+75 mi/hr
-----------------
270+=+75%2At
Divide both sides by 75
t+=+270%2F75
t+=+3.6 hrs
They have been driving for 3.6 hours