Question

Two SUVs head toward each other from opposite ends of a freeway 639 miles long. If the speed of the first SUV is 39 miles per hour and the speed of the second SUV is 32 miles per hour, how long will it take before the SUVs pass each other?

Answer 1

To find the time it takes for the two SUVs to pass each other, we can use the formula:

time = distance / relative speed

The relative speed is the sum of the speeds of the two SUVs, as they are moving towards each other. Let's calculate it:

Relative speed = speed of first SUV + speed of second SUV

Relative speed = 39 mph + 32 mph

Relative speed = 71 mph

Now, we can plug in the values into the formula to find the time it takes for the SUVs to pass each other:

time = 639 miles / 71 mph

Using division, we get:

time = 9 hours

So, it will take 9 hours for the two SUVs to pass each other.