Determine the rate at which Cara traveled during
the second part of her trip.

Cara drives for 4 hours at a rate of 45 miles per hour.
Later, she drives for another 3 hours so that her total
distance traveled for the day is 336 miles.

What is the solution set for 4(45) + 3r = 336 given the replacement set {52, 53, 54, 55}?

Question

Determine the rate at which Cara traveled during 
the second part of her trip.
 
Cara drives for 4 hours at a rate of 45 miles per hour. 
Later, she drives for another 3 hours so that her total 
distance traveled for the day is 336 miles. 
 
What is the solution set for 4(45) + 3r = 336 given the replacement set {52, 53, 54, 55}?

studygurl14 · Answer

I don't get the replacement set part, but otherwise, I can solve this
4(45) + 3r = 336
180 + 3r = 336
3r = 156
Can you do the rest?