Ok: the question is basically asking what is the percentage of the black marbles he had pulled with replacements. You look at the graph and count how many black marbles he pulled,6, and then find the total of marbles he pulled after the experiment ,20. So, you take (6/20) which then gives you an answer of .3 which is a 30%.
Remark
To find any common denominator, write down all the prime factors and pick out what you need to make an LCD.
Method
x has one x
2x^2 = 2 * x * x
Your LCM is
one 2
two xs.
LCM = 2*x*x
LCM = 2x^2
A represents 1/9 and B represent 8/9
Answer : x=3
Step-by-step explanation:
Explanation:
2x+3=9
We want to find the variable x, so we have to make it alone. To do so, first subtract 3 from both sides of the equation:
2x+3 − 3=9 − 3
2x=6
Now divide both sides by 2:
2x2=62
So the final answer is:
x=3
<h3>Answer: Choice C</h3>
Here's how the verification would look like
using the identity here
