Sent a picture of the solution to the problem (s).
In addition to mathematics and statistics, the arithmetic mean is used frequently in many diverse fields such as economics, anthropology, and history, and it is used in almost every academic field to some extent. For example, per capita income is the arithmetic average income of a nation's population i think
Think about it... If it gains 4 pounds in 16 years, how many does it grow in 1 year? :) See the relation? If not...
a) How would you express it growing per year? 4 pounds in 16 years... It must be 4/16!
b) To find the unit rate, the numerator MUST BE 1. What can you do to 4 to get to 1? You can divide by 4!
c) Of course, whatever you do to one side of the fraction, you HAVE to do to the other. That means you have to divide the 4 in the equation by 4 AND the 16 in the equation by 4. You should get 1/4, because 4/4 is 1 and 16/4 is 4.
d) Wow! That means your unit rate is 1 pound per 4 years, or 1/4!
TIP:
Try thinking of the division sign / as 'per'. Instead of the unit rate being thought of as 1/4, think of it as 1 per 4 years. :)
Divide 96 w/ 3 you get 32 multiply 32x4 you get 128 multiply 128x3 and the answer is 384
This is a caculator problem. Just divide 3940 by 20 and round down to the whole number
