The time it takes to cover the distance between two cities by car varies inversely with the speed of the car. the trip takes 13 hours for a car moving at 68 mph. what is the speed of a car that makes the trip in 17 hours?

Alright, lets get started.

The trip takes 13 hours for a car moving at 68 mph.

We could find the distance between both cities with help of this.

Distance = time * speed

Distance = 13 * 68 = 884 miles

Means the distance between both cities = 884 miles

Now if the trip takes 17 hours, we need to find new speed.

For finding this new speed, one thing that not changed is, distance between two cities that is 884 miles.

Speed = distance / time

Speed = 884 / 17

Speed = 52 miles / hr

Hence, the speed of the car is 52 miles / hr : Answer

Hope it will help :)

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step-by-step explanation:

225x²+4=0

225x²=0-4

225x²=-4

x²=-4/225

x=±√-4/225