A bag contains 2 white marbles and 7 purple marbles. Two marbles are drawn at random. One marble is drawn and not replaced. Then a second marble is drawn. What is the probability of selecting a purple marble and then a white marble? What is the probability of selecting two white marbles? Is there a greater chance of selecting two white marbles in a row or two purple marbles in a row? Show your work.
Answers
P ( P + W ) = 7/9 * 2/8 = 7/36
2. The probability of selecting two white marbles:
P( W + W ) = 2/9 * 1/8 = 1/36
3. P ( P +P ) = 7/9 * 6/8 = 21/36 = 7/12
The probability of selecting 2 purple marbles in a row is much greater than selecting two white marbles.
The probability of selecting a purple marble and then a white marble is 0.19.
The probability of selecting two white marbles is 0.03.
The probability of picking two purple marbles is greater.
What are the probabilities?
Probability is used to determine the likelihood that an event would occur.
The probability of selecting a purple marble and then a white marble = (number of purple marbles / total number of marbles) x (number of white marbles / total number of marbles- 1)
7/9 x 2/8 = 0.19
The probability of selecting two white marbles = (number of white marbles / total number of marbles) X (number of white marbles / total number of marbles- 1)
2/9 X 1/8 = 0.03
The probability of selecting two purple marbles = 7/9 x 6/8 = 0.58
To learn more about probability, please check: brainly.com/question/23722574
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donna wants to make trail mix made up of almonds walnuts and raisins she wants to mix one part almonds two parts walnuts and three parts raisins. almonds cost 12 per pound walnuts cost 9 dollars per pound and raisins cost 5 dollars per pound. donna has 15 dollars to soend on the trail mix determine how mant pounds of.trail mix she can make
Answers
Answer: 3.4^68
Work Shown:
(3.4^17)^4
3.4^(17*4)
3.4^68
The general rule is (a^b)^c = a^(b*c)
Answers
Answer:
55
Step-by-step explanation:
To find the lowest score on the math test, we can set up an equation based on the information given.
Let's denote the lowest score as "x".
According to the information given, Angela scored 15 points less than twice the lowest score.
Twice the lowest score is 2x, and Angela's score is 15 points less than that, so her score can be represented as 2x - 15.
Given that Angela's score is 95, we can set up the equation: 2x - 15 = 95
To solve for x, we can add 15 to both sides of the equation: 2x - 15 + 15 = 95 + 15
Simplifying, we have: 2x = 110
Finally, we can divide both sides of the equation by 2 to isolate x: 2x/2 = 110/2
Simplifying further, we get: x = 55
Therefore, the lowest score on the math test was 55.
Answers
2x+4y=22
2x+2y=15
Answers
Answer:
x = 4
y =
Step-by-step explanation:
Ummmm
I'm not sure if this is corrrect but this is what I got
So first you solve 2x+4y=22 to find x
and you get x =
Then you have to subtitute for
in
which you then get y=
After you have to subttitute y= for y in x =
which you get as x=4
Finally you get the answer as:
x = 4
y =
Answers
1 lb : ?
x6 x6
6lb : $12
x times 6 is 12, so it is 2
2 dollars a pound.
3- (blank)=11