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Vlad [161]
4 years ago
7

Katalin drove 210 miles on her vacation. She drove an average of 1.4 times faster on the second 105 miles of her trip than she d

id on the first 105 miles of her trip. Which expression represents the time she spent driving? Let x = her speed on the first half of the trip.
Mathematics
1 answer:
svetlana [45]4 years ago
3 0

Hello.

If Speed = Distance ÷ Time then Time = Distance ÷ Speed

The time taken for the first 90 miles is, 90/x

The time taken for the second 90 miles is, 90/1.5x

The time for the complete journey = 90/x + 90/1.5x = 450/3x = 150/x

Have a nice day

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