Concept explainers
a.
To calculate:Each person’s Speed as unit Rate.
a.
Answer to Problem 23PPS
Explanation of Solution
Given information:
A line graph which shows average rates in a race.
Speed as Unit Rate: Speed as unit rate is the term used to describe the change in speed per unit time. In general, we can say that the distance travelled in each second or in one second.
Consider the given graph as,
From the given graph, it is clear that
b.
To calculate: The time required by the person A and the person J to run 1 mile.
b.
Answer to Problem 23PPS
Explanation of Solution
Given information:
A line graph which shows average rates in a race.
Formula Used:
Calculation:
Since,
That means distance travelled in 1 sec is 8 ft.
Then, required time
Similarly,
That means distance travelled in 1 sec is 6 ft.
Then, required time
Therefore,
c.
To graph: The line representing his speed would be graphed,if the max running rate is 5 feet per second.
c.
Explanation of Solution
Given information:
A line graph which shows average rates in a race.
Since the person J speed is 6 ft per second and the person M’s speed is 5 ft per second. The line representing the speed of the person M will be below the line for the speed of the person J.
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