Question

Two cars that are 150 miles apart start driving toward each other on parallel roads. The average speed of the first car is 60 miles per hour. The average speed of the second car is 55 miles per hour. Which equation can be used to determine t, the time it takes for the two cars to pass each other?

Answer 1

To determine the time it takes for the two cars to pass each other, we can use the equation d = rt, where d is the distance, r is the rate (or speed), and t is the time. In this case, since the cars are driving towards each other, the combined rate is the sum of the individual speeds of the cars.

Step-by-step explanation:

To determine the time it takes for the two cars to pass each other, we can use the equation d = rt, where d is the distance, r is the rate (or speed), and t is the time. In this case, since the cars are driving towards each other, the combined rate is the sum of the individual speeds of the cars.

So, the equation we can use is 150 = (60 + 55)t. This equation can be simplified to 150 = 115t. To solve for t, we divide both sides of the equation by 115, which gives us t = 1.304 (rounded to three decimal places).

Answer 2

the way I get this answer is by adding up 55+60 =115 now divide 150 by 115 to get the amount of time 1.3 hours