Two cars start at the same point and travel in the same direction at average speeds of 70 miles per hour and 40 miles per hour. determine after how much time (in hours)the two cars will be in 105 miles

The two cars will be 105 miles apart in 3.5 hours.

We can determine this by realizing that the net difference in their speed is 30 miles per hour (70mph - 40mph). This means that every hour that passes, car A moves 30 miles away from car B. To determine the final time, we can divide the total goal distance by the rate.

105miles/30mph = 3.5 hours.