On a trip mrs. ahmed drove 188 miles in 4 hours. On the return trip, she took a different route and traveled 197 miles in 4.5 hours. What was the average rate of speed for the trip?
To find the average rate of speed for the trip, you need to calculate the total distance traveled and the total time taken.
- On the first trip, Mrs. Ahmed drove 188 miles in 4 hours.
- On the return trip, she drove 197 miles in 4.5 hours.
To calculate the total distance, you add the distance of the first trip to the distance of the return trip:
188 miles + 197 miles = 385 miles.
To calculate the total time taken, you add the time taken for the first trip to the time taken for the return trip:
4 hours + 4.5 hours = 8.5 hours.
Finally, to calculate the average rate of speed, you divide the total distance by the total time:
385 miles รท 8.5 hours = 45.29 miles per hour (rounded to two decimal places).
Therefore, the average rate of speed for the trip is approximately 45.29 miles per hour.
To calculate the average rate of speed for the trip, you need to find the total distance traveled and divide it by the total time taken.
In this case, Mrs. Ahmed drove 188 miles in 4 hours on the outward trip, and 197 miles in 4.5 hours on the return trip.
To find the total distance, you add the distance of the outward trip to the distance of the return trip:
Total distance = 188 miles + 197 miles = 385 miles
To find the total time taken, you add the time taken for the outward trip to the time taken for the return trip:
Total time = 4 hours + 4.5 hours = 8.5 hours
Now, divide the total distance by the total time to get the average rate of speed:
Average rate of speed = Total distance / Total time = 385 miles / 8.5 hours
Using a calculator, the average rate of speed for the trip is approximately 45.2941 miles per hour.
avg rate = totaldistance/totaltime
= (188+197)mi / (4 + 4.5) hr = ____ mi/hr