Help? Question is in the screenshot

Hi there!

Recall the formula:

Δd = vt, where:

v = velocity (mph in this instance)

t = time (hours)

Since the second car starts 2 hours after the first car, we can write this as:

Time for second car: t - 2

Set the two equations equal to each other:

55(t - 2) = 45t

Solve for t:

55(t - 2) = 45t

Simplify:

55t - 110 = 45t

10t = 110

t = 11 hours

Plug into one of the equations:

distance travelled = 45(11) = 495 miles

final answer is : )