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I drove to the beach at a rate of  60 miles per hour. If I had driven at a rate of  40 miles per hour instead, then I would have arrived  45 minutes later. How many miles did I drive

 
 Oct 10, 2024
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The time difference between driving at 60 mph and 40 mph is 45 minutes, which is 3/4 of an hour. So, the equation for the time you spent driving is:

 

time = (rate * time_difference) / (rate - new_rate)

 

Plugging in the known values, we get:

 

time = (40 mph * 3/4 hours) / (40 mph - 25 mph)

 

time = 7.5 hours

 

Since the rate is in miles per hour and the time is in hours, the distance traveled is simply the product of the two:

 

distance = rate * time

 

distance = 40 mph * 7.5 hours

 

distance = 300 miles

 

Therefore, you drove 300 miles to the beach.

 Oct 10, 2024

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