Answer:
The average speed on this trip was 46.15 mph. The correct option is A.
Step-by-step explanation:
In order to calculate the average speed, we need to apply the following formula:

We were given the distance between the two cities in miles, therefore we can directly apply it to the expression. Although the time was given in the hh:mm 12 h format and we need a diference in hours, so we will convert that as shown below:


The elapsed time of the trip is the difference between these:

We can now apply it to the formula:

The average speed on this trip was 46.15 mph. The correct option is A.
16/99
8/9
2/9
do the last three have a decimal in the start?
Answer:
or else what
Step-by-step explanation:
use slader.com
Answer:
-51/82.
Explanation:
Given two points (x1,y1)=(2,21) and (x2,y2)=(84,-30), we find the slope using the formula below:

Substitute the given points:

The slope of the line that passes through the given points is -51/82.