Answer:
A would most likeley be the answer because when you divide 10 from 4 you get 2.50
Step-by-step explanation:
hope i could help.
I'm guessing you're looking for the mean or average? That would be the sum of all the ages divided by the numbers of people
So:
19+8+21+19=67
Divided by 4
67/4= 16.75
Rounded up you get 17
Answer:
His average speed for the rest of the journey was of 48mph.
Step-by-step explanation:
We use the following relation to solve this question:

In which v is the velocity, d is the distance and t is the time.
First 32 miles at an average speed of 64mph.
So the time for these 32 miles is:




Rest of the trip:
200 - 32 = 168 miles in 4 - 0.5 = 3.5 hours. So the average speed is of:

His average speed for the rest of the journey was of 48mph.
Answer:
1080 boys
Step-by-step explanation:
2400 x 0.45 = 1080
30+2x=3x+5
x=25
edit: sorry for the wrong answer. i messed up