SOLUTION: Grandma lives 120 miles away. dinner is at 5pm. the speed limit is 60 mph. What time do you need to leave to be on time.

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Question 1016484: Grandma lives 120 miles away. dinner is at 5pm. the speed limit is 60 mph. What time do you need to leave to be on time.
Found 2 solutions by macston, fractalier:
Answer by macston(5194) About Me  (Show Source):
You can put this solution on YOUR website!
.
120 mi/60mph=2 hours
2 hours drive time.
Leave by 3 PM.
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Answer by fractalier(6550) About Me  (Show Source):
You can put this solution on YOUR website!
Distance = rate times time, or d = rt. That means
t = d/r
Here we have 120 miles / 60 mph = 2 hours
If you want to make it by 5 pm, you'd better leave at 3 pm.