Katalin drove 180 miles on her vacation. She drove an average of 1.5 times faster on the second 90 miles of her trip than she did on the first 90 miles of her trip. Which expression represents the time she spent driving? Let x = her speed on the first half of the trip.

Question

Katalin drove 180 miles on her vacation. She drove an average of 1.5 times faster on the second 90 miles of her trip than she did on the first 90 miles of her trip. Which expression represents the time she spent driving? Let x = her speed on the first half of the trip.

(1 point)
Responses

150 over x
Image with alt text: 150 over x

300 over x
Image with alt text: 300 over x

150 times x
Image with alt text: 150 times x

225 over x

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1 answer
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Answer 1

Bot GPT 3.5 answered

The correct expression would be: 150/x + 90/(1.5x) = 150/x + 60/x = 210/x

So, the expression representing the time she spent driving is: 210/x