When running a half marathon, it took kyle 6 minutes to run from mile marker 1 to mile marker 2 , and 21 minutes to run from mile marker 2 to mile marker 4. what was kyle's average speed as he ran from mile marker 1 to mile marker 4

Her average speed would be 8.89 miles per hour.

Step-by-step explanation:

Since we have given that

Time taken  to run from mile marker 1 to mile marker 2 = 6 minutes

Time taken to run from mile marker 2 to mile marker 4 = 21 minutes

So, Number of miles from 1 to 4 = 4 miles

total time taken = 6+21 = 27 minutes

So, Average speed would be

Hence, her average speed would be 8.89 miles per hour.