Ayshab walked x miles at 4 mph. She then walked 2x miles at 3 mph.
Find Ayshab's average speed for the whole journey.
Give your answer as a mixed number.

Ayshab's average speed for the whole journey is 36/11 mph and this can be determined by using the formula of average speed.

Given :

The formula of speed is given by:

Now, the time taken by Ayshab to walk x miles at 4 mph is :

Now, the time taken by Ayshab to walk 2x miles at 3 mph is:

Now, the average speed is given by the formula:

Ayshab's average speed for the whole journey is 36/11 mph.

For more information, refer to the link given below:

link

Ayshab's average speed for the whole journey =  

Step-by-step explanation:

Formula: Speed =

i.e. Time =

If Ayshab walked x miles at 4 mph, then time taken by him = hours

If she then walked 2x miles at 3 mph, then time for this period = hours

Average speed =

Hence, Ayshab's average speed for the whole journey =  

18

step-by-step explanation:

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step-by-step explanation: