A graph shows time (minutes), numbered 15 to 135 on the horizontal axis, and distance from home (miles) labeled 1 to 10 on the vertical axis. The line shows an increase to 8 miles at 45 minutes, constant, and decrease at 90 minutes.
Consider the graph of Miriam's bike ride to answer the questions.

How many hours did Miriam stop to rest?

How many hours did it take Miriam to bike the initial 8 miles?

The graph mentioned in the question above is shown in the figure attached below:

Explanation:

In the figure below you can see that the graph does not show any change between 45 and 90 minutes, during the distance covered in that period of time. This means that to know how many hours Mirian stopped to rest, we need to do the calculation:

Rest time: 90 minutes - 45 minutes = 45 minutes

45 minutes / 60 = 0.75 hours.

To find out how many hours it took Miriam to ride her bike in the initial 8 miles, we must see in the graph that Miriam reached 8 miles after 45 minutes, that is, it took 45 minutes for her to reach 8 miles.

45 minutes / 60 = 0.75 hours.

We divide the minutes by 60, because 1 hour has 60 minutes.

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