First you need to find the rate. This problem is based on the formula d = rt d = distance r = rate t = time.
The question is asking how many miles will it travel in 8 hours so to find this out we need to find the rate when the car travels 240 miles in 4 hours. We use this information and plug it into the model d = rt
d = 240 r = don't know yet t = 4 hr d = rt 240 = 4r 240 / 4 = 4r / 4 60 = r r = 60 So the car is going at a rate of 60 miles per hour. Now that we know this we can solve for how many miles the car will travel in 8 hours. d = rt d = r * t d = 60 * 8 d = 480
So the car will travel 480 miles in 8 hours
Another way to think about this is that you know the car traveled 240 miles in 4 hours and the question is wanting to know how far the car will travel in 8 hours, which would be double the 4 hours so 240 + 240 = 480
