Question

Three packages weigh

1/1/12
pounds, 43
pounds. What is the average weight, in pounds, of the packages?
A. 2.14
B. 2.85
C. 4.75
D. 8.55

Answer 1

B. 2.85

Explanation:

to find the average of multiple numbers, we add them together and divide by the number of values we combined

for example: the average of 1, 2, and 3:

1 + 2 + 3 = 6

6 / 3 (because there were 3 numbers) = 2

so, this average would be 2.

Let's add the weights (I have changed these into a denominator of 20, so that they can be easily added. Let me know if you need clarification on how I did so)

1 1/2 pounds, 4 3/4 pounds, 2 3/10pounds

1 1/2 = 1 10/20

4 3/4 = 4 15/20

2 3/10 = 2 6/20

1 10/20 + 4 15/20 + 2 6/20 = 7 31/20

7 31/20 = 8 11/20

8 11/20 = 8.55

8.55 / 3 = 2.85

so, the average weight of these packages is 2.85 [pounds]

hope this helps! ^u^