Answer:
Elizabeth had 30 stamps originally.
Step-by-step explanation:
Let,
x be the number of stamps Elizabeth have.
Number of stamps given to John = 1/6 of x = 
Remaining stamps = 
Stamps given to Peter = 1/5 of remainder = 
Number of stamps left = 20
Now,

Dividing both sides by 4

Hence,
Elizabeth had 30 stamps originally.
Answer:
Amanda's
Step-by-step explanation:
Given :
3/6 + 2/4
The L. C. M of 6 and 4 = 12
(6 + 6) / 12
12 / 12
= 1
Renne's result = 5/10
Amanda's result = 1 whole
Hence, Amanda's result makes more sense.
I'm guessing the purpose of this exercise is to find the average value of
over the region
,
![D=\left\{(x,y)\mid (x,y)\in[-\pi,\pi]^2\right\}](https://tex.z-dn.net/?f=D%3D%5Cleft%5C%7B%28x%2Cy%29%5Cmid%20%28x%2Cy%29%5Cin%5B-%5Cpi%2C%5Cpi%5D%5E2%5Cright%5C%7D)
which is

The denominator is the measure (area) of
, which is easy to compute:

Not to be confused with the integral in the numerator:

but this integral is difficult to compute, hence the inequalities. We have




Answer:
14 candy Bars
Step-by-step explanation:
Let's under the question before we attempt it.
Total number of Candy Brooklyn is supposed to sell = 20
Percentage of Candy Bars sold= 70%
To know the exact number of Candy sold, it's means we must know the exact value of 70% of 20.
To solve this, we just proceed with mathematical operations.
Therefore:
70% of 20
= 70 / 100 * 20
= 1400 / 100
= 14.
It therefore means that, Brooklyn sold 14 Candy Bars
Math is fun! Lets Keep learning