Question

due to an accident on the highway, the stanford family is delayed driving to their weekend destination. their average speed is 30 miles per hour for the first portion of their trip as they approach the accident site. after passing the accident site, their average speed increases to 50 miles per hour. the stanford family can express their average speed for the entire trip as $\frac{3}{total time traveling}$. what is the meaning of the parts of this rational expression in the context of total distance traveled? select from the drop - down menus to correctly complete the statements. the numerator of the rational expression represents the stanford familys choose... the denominator of the rational expression represents the stanford familys choose...

Explanation:

Step1: Recall the average - speed formula

The formula for average speed is $v=\frac{d}{t}$, where $v$ is the average speed, $d$ is the total distance traveled, and $t$ is the total time taken.

Step2: Identify the parts of the rational expression

In the expression for average speed $\frac{\text{total distance traveled}}{\text{total time traveling}}$, the numerator represents the total distance covered during the entire trip, and the denominator represents the total time spent traveling.

Answer:

The numerator of the rational expression represents the Stanford family's total distance traveled.
The denominator of the rational expression represents the Stanford family's total time traveling.