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elena-s [515]
3 years ago
9

You are randomly drawing marbles from a bag containing both blue and green marbles, without replacing the marbles between draws.

If B = blue and G = green, which of the following represents the probability of drawing a blue marble on the first draw and a green marble on the second?
A. P(B) • P(G)
B. P(B and G)
C. P(G after B)
D. P(B, then G)

You are randomly drawing marbles from a bag containing 4 blue and 2 green marbles, replacing the marbles between draws. Which of the following will give the probability of drawing a blue marble on both your first and second draws?
A. 1 over 4 • 1 over 4
B. 4 over 6 • 4 over 6
C. 1 over 4 • 1 over 3
D. 4 over 6 • 3 over 6
Mathematics
1 answer:
arlik [135]3 years ago
6 0
The answer is A to the first one and D to the second one
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John drove 450 miles in 8 hours. he averaged 50 miles per hour on the highway and 60 miles per hour on the turnpike. how many ho
Alexeev081 [22]
Total distance John drove=450 miles
total time=8 hours
let the number of hours he drove on highway be x, number of hours he drove on turnpike will be (8-x) hours
since
distance=speed*time
distance traveled in highway=50x
distance traveled in turnpike=60(8-x)
thus the total distance will be:
50x+60(8-x)=450
simplifying the above
50x+480-60x=450
-10x=450-480
-10x=-30
thus
x=3 hours
Thus he drove on highway for 3 hours.
3 0
3 years ago
Graph f(x)=3x-1 and g(x)=2^x on the same coordinate plane.
julsineya [31]

Answer:

B. 1 and D. 3.  

Step-by-step explanation:

The figure below shows the graphs of f(x) = 3x - 1 (red) and g(x) = 2^x (blue).

The solutions of 3x - 1 = 2^x are the points at which the two curves intersect.

The solutions are at x = 1 and x = 3.

Check:

3 × 1 - 1 = 2¹     3 × 3 -1 = 2³

    3 - 1 = 2           9 - 1 = 8

        2 = 2                8 = 8

7 0
3 years ago
Jane has 6 red marbles. 4 green marbles, and 2 black marbles in a bag. What is the probability of ramdomly pulling out a green m
fomenos

the total number of marbles in the bag is 12 . so the probability of getting a green marble at random is 4/12 which resluts to 1/3

4 0
3 years ago
Solve this inequality 5 x + 2 < 32
Hatshy [7]

Answer:

Here is your answer:

5x + 2 < 32

solution:

5x+ 2 < 32

or, 5x < 32-2

or, 5x < 30

or, 5x < 30/2

or, 5x < 15

or, x < 15/3

or, x < 5

therefore, x < 5 <u>ans</u>

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3 years ago
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Fofino [41]

Answer:

A is your answer.

Step-by-step explanation:

The quickest way to find this is to count the whole numbers between each point given in the answers and look for the answer that falls between 2 and 3 units.

Answer A, -31/2 and 1 is the only answer that meets this criteria.

4 0
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