x = 10, y = 20/6
<h3>Further explanation</h3>
Given
one number is three times of the other
their arithmetic mean is 10
Required
The numbers
Solution
Suppose the numbers you are looking for are x and y, then :
x = 3y (equation 1)
The arithmetic mean : the average of values
(x+3y)/2=10
x+3y = 20 (equation 2)
Substitute equation 1 into equation 2
3y+3y=20
6y=20
y = 20/6
from equation 1 :
x= 3 x 20/6
x = 60/6
x = 10
Answer:
Explanation:
plug in the radius for r and the v doesn't matter
1 mole of NO2= 7 + (8×2)= 7 + 16 = 23g
81g of NO2 = 81÷23 = 3.5217
Ans = 3.5 moles ...//
Answer:
physcial change
Explanation:
As it has visible changes on shape and size
Answer:
Matthias Jacob Schleiden was a German botanist who, with Theodor Schwann, cofounded the cell theory. In 1838 Schleiden defined the cell as the basic unit of plant structure, and a year later Schwann defined the cell as the basic unit of animal structure.
Explanation:
