Selection D is appropriate.
_____
I would write it differently.
.. 180 -x = "supplement of an angle"
.. 2x +20 = "20 more than twice the measure"
These are said to be equal, so I would write it as
.. 180 -x = 2x +20
Of course, adding x to both sides of this equation makes it
.. (2x +20) +x = 180 . . . . . . matches selection D
The percentage change is B. 53% increase
Option E.
Though this answer is based off of the assumption that they are all relatively the same size.
The rule of given table is (a÷2)-(b÷3).
Step-by-step explanation:
From the given table it is clear that
8 becomes 3
24 becomes 9
40 becomes 15
Rule
(8÷2)-(3÷3) = (4-1) = 3
(24÷2)-(9÷3) = (12-3) = 9
(40÷2)-(15÷3) = (20-5) = 15
So, the equation will be
(a÷2)-(b÷3)
The probability of drawing two blue marbles if the first marble is not replaced is 1/5
<h3>How to determine the probabilities?</h3>
<u>The probability of tossing a head and drawing a red marble</u>
The given parameters are:
White = 1
Blue =3
Red = 2
Total = 6
The probability of a head is
P(Head)= 1/2
The probability of drawing a red marble is
P(Red)= 2/6 = 1/3
The required probability is
P = P(Head) * P(Red)
This gives
P = 1/2 * 1/3
P =1/6
<u>The probability of drawing two blue marbles if the first marble is not replaced.</u>
Here, we have:
P(B1) = 3/6 = 1/2
P(B2) = 2/5
The required probability is
P = P(B1) * P(B2)
This gives
P = 1/2 * 2/5
P =1/5
Hence, the probability of drawing two blue marbles if the first marble is not replaced is 1/5
Read more about probability at:
brainly.com/question/24756209
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