Solve the problem.
-An airplane leaves Los Angeles for Denver at a speed of 400 mph. Thirty minutes later, a plane going from Denver to Los Angeles leaves Denver, which is 850 miles from Los Angeles, at a speed of 470 mph. When they
Meet, how far are they from Denver?
A) 351 miles
B) 59 miles
C) 293 miles
D) 117 miles

Question

Quizplus · Accepted Answer

The first plane travels for 0.5 hours before the second plane starts, covering 200 miles. The remaining distance between the planes is 650 miles. The planes approach each other at a combined speed of 870 mph (400 mph + 470 mph). They meet after 650/870 hours, which is approximately 0.747 hours. The second plane travels 0.747 * 470 = 351 miles from Denver.

Solve the Problem. -An Airplane Leaves Los Angeles for Denver at a Speed