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.

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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 =  

a function could be identified in 3 ways either on a chart,graph, or ordered pairs. first a function is that each point has its own. the rule is that there can be many x's to one y but there can not be 2 x's at different y's. so on a graph when you put a straight line through the y's there should be one dot only to be a function.

step-by-step explanation: