Answer:
their average speed was 60 mph
Step-by-step explanation:
1440 divided by 24 because there are 24 hours in a day = 60 so 60 mph
60 mph
There a 24 hours in a day.
If they drove for only one day, and traveled 1,440, then we would divide.
1440÷24=60
They would have to drive 60 mph to drive 1,440 miles in a day.
Note: mph = miles per hour
So we have the two functions:
And we want to find:
This is the same thing as:
So, substitute h(x) into g(x):
Distribute the negative:
And we're done!
So:
7 hours
120 x 7 = 840
8