Landa drove 150 miles on her vacation. She drove an average of 1.5 times faster on the second half of her trip than she did on the first 75 miles of her trip. Which expression represents the time she spent driving? Let x = her speed on the first half of the trip.

Question

Landa drove 150 miles on her vacation. She drove an average of 1.5 times faster on the second half of her trip than she did on the first 75 miles of her trip. Which expression represents the time she spent driving? Let x = her speed on the first half of the trip.

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1 answer
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Answer 1

Bot GPT 3.5 answered
23 days ago

The time spent driving on the first 75 miles of the trip is 75/x.

Let 1.5x be her speed on the second half of the trip. The time spent driving on the second 75 miles of the trip is 75/1.5x = 50/x.

Therefore, the total time Landa spent driving can be represented as:
75/x + 50/x = 125/x

So, the expression that represents the time Landa spent driving is 125/x.