The atomic mass of an element is the average mass of the atoms of an element measured in atomic mass unit (amu, also known as daltons, D). The atomic mass is a weighted average of all of the isotopes of that element, in which the mass of each isotope is multiplied by the abundance of that particular isotope. (Atomic mass is also referred to as atomic weight, but the term "mass" is more accurate.)
Answer:
y = 9/b
Step-by-step explanation:
by = 9 solved for b yields y = 9/b.
Answer:
Step-by-step explanation:
No of ways in which 5 cards are chosen is 
No of ways in which at most 4 cards are spades 
Total ways-5 spades
Probability that at most 4 cards are spade 
______2___9_______
9| 2 6<span> </span>2
-1 8
---------
8 2
-1 8
----------
1
So, 29 with a remainder of 1, meaning the answer is A.
<span>What percent of 600 is 12?
In order to get what percent of 600 is 12, we need to formulate the equation.
12 = ___ * 600
12 = 600P
P = 12 / 600
P = 0.02
Percentage must be in hundred. So multiply 0.02 by 100
= 0.02 * 100
= 2%
So, 2% of 600 is equal to 12.</span>
