Question

One car leaves an intersection traveling north at 48 mi/h. Later, a second car leaves that...

One car leaves an intersection traveling north at 48 mi/h. Later, a second car leaves that same intersection traveling east at 90 mi/h. At what rate is the distance between the cars increasing when the first car is 96 miles north of the intersection and the second car is 72 miles east of the intersection?

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