# Two cars start at the same time from opposite ends of a highway that is 45 miles long.

Two cars start at the same time from opposite ends of a highway that is 45 miles long. One car is riding at 14 mph and the second car is riding at 16 mph. How long after they begin will they meet?

## Quiz

1.5

### Steps/Work

As cars are moving in opposite directions their speeds will be added. So their relative speeds: 16+14 = 30 mph
Total distance to be covered = 45 miles.
Time taken would be: 45 miles/30 mph = 1.5 hours
E is the answer.

## Physics Calculator / Auto Solver

Two cars start at the same time from opposite ends of a highway that is miles long. One car is riding at mph and the second car is riding at mph. How long after they begin will they meet?

1.5

### Step by Step Solution

In order to solve problem, you must evaluate n0 / (n1 + n2).

 n0 = 45 14 16
• n0 / (n1 + n2)
• Evaluate n1 + n2 = 30

n0 / 30
• Evaluate n0 / 30 = 1.5

1.5
• The answer to the problem and the result of n0 / (n1 + n2) is 1.5