Answer:
The average velocity the entire trip was 43.25 mi/h
Step-by-step explanation:
In this case we have to calculate an average based on the miles traveled. First we have to calculate the total of miles traveled, then calculate the portion of the total travel of each and with this calculate the average speed during the trip. First the total miles traveled:

Now the percentages:
At 57 mi/h were 
At 44 mi/h were 
At 37.8 mi/h were 
Now multiplying the speed by the portion and summing them we can have the average velocity:

The average velocity the entire trip was 43.25 mi/h
Answer:
4.875
Step-by-step explanation:
Answer:
okie
Step-by-step explanation:
Imdomt really understand but i done 180 divide 3 = 60
Answer:
Step-by-step explanation:
Examples. A friend asks to borrow $300 and agrees to repay it in 30 days with 3% interest. How much interest will you earn? Simple interest is calculated on the principal, or original, amount of a loan. Compound interest is calculated on the principal amount and also on the accumulated interest of previous periods, and can thus be regarded as "interest on interest."