I drove to the beach at a rate of 40 miles per hour. If I had driven at a rate of 42 miles per hour instead, then I would have arrived 45 minutes later. How many miles did I drive?

Guest Jun 4, 2023

#1**0 **

D/40 ==T, [T==Time]

D/42==T - 45/60, solve for D, T

Use substitution to get:

**D==630 miles to the beach !!**

Guest Jun 4, 2023

#2**+1 **

*I drove to the beach at a rate of 40 miles per hour. If I had driven at a rate of 42 miles per hour instead, then I would have arrived 45 minutes later. How many miles did I drive? *

Are you sure you copied the problem correctly?

It doesn't make sense to drive faster and arrive later.

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Guest Jun 4, 2023