Step-by-step explanation:
It is given that Joe paid 14.00 for a board game this is 70% of the original price what is the original price.
Let the original price of board game be
X.
x * 70/100 = 14
x * 7/10 = 14
Multiply both sides by 10.
7x = 140
Divide both sides by 7.
x = 20
When grades are expressed as a quantity of 1, such as two feet per second or 5 miles per hour, they are called unit rates.
Answer:
Her answer is not correct because the sum cannot be less than either addend.
The correct answer is
Step-by-step explanation:
Given:
The expression to add is given as:

Alaina got the answer as 
Let us first try to add the fractions and arrive at the answer.
Taking LCD of 18 and 20, we get LCD = 180
Now, making denominators of each fraction equal to 180 and changing the numerators accordingly.

Therefore, the result of Alaina is not correct because she got an answer which is less than the fraction
. But when we add two fractions, the result must be greater than either of the addend.
Therefore, her answer is not correct because the sum cannot be less than either addend.
V= 1/3 pi r^2h
Find the radius
r=d/2
r=8/2
r= 4
V= 1/3 pi (4)^2•6
V=32pi or 100.53