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Leni [432]
3 years ago
14

Jeff has 8 red marbles 6 blue marbles, and 4 green marbles that are the same size and shape he puts the marbles into a bag, mixe

s the marbles and randomly picks one Marble. What is the probability that the marble will be blue
Mathematics
2 answers:
cricket20 [7]3 years ago
5 0

Answer:

I think it is 1/3

Step-by-step explanation:

you have 18 ways to pick one marble in the bag and have 6 ways to pick a blue marble so the probability that the marble will be blue is 6/18=1/3

Cloud [144]3 years ago
4 0

Hey buddy I am here to help!

Red = 8

blue = 6

greem = 4

total = 18

probability of blue marble = 6/18 = 1/3

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Bobcat park is a rectangular park with an area of 5 1/5 square miles.Its width is 1 19/20 miles. How long is the park
mel-nik [20]

area = length times width, so length = area / width

5 1/5 mi^2 5.2 mi^2

Here, length = ------------------- = --------------- = 2.66666... mi = 2 2/3 mi (answer)

1 19/20 mi 1.95 mi

4 0
3 years ago
How do you do this question?
Alex Ar [27]

Step-by-step explanation:

(a) dP/dt = kP (1 − P/L)

L is the carrying capacity (20 billion = 20,000 million).

Since P₀ is small compared to L, we can approximate the initial rate as:

(dP/dt)₀ ≈ kP₀

Using the maximum birth rate and death rate, the initial growth rate is 40 mil/year − 20 mil/year = 20 mil/year.

20 = k (6,100)

k = 1/305

dP/dt = 1/305 P (1 − (P/20,000))

(b) P(t) = 20,000 / (1 + Ce^(-t/305))

6,100 = 20,000 / (1 + C)

C = 2.279

P(t) = 20,000 / (1 + 2.279e^(-t/305))

P(10) = 20,000 / (1 + 2.279e^(-10/305))

P(10) = 6240 million

P(10) = 6.24 billion

This is less than the actual population of 6.9 billion.

(c) P(100) = 20,000 / (1 + 2.279e^(-100/305))

P(100) = 7570 million = 7.57 billion

P(600) = 20,000 / (1 + 2.279e^(-600/305))

P(600) = 15170 million = 15.17 billion

7 0
2 years ago
(7,-1) and ( 21,-5) what is the slope
mart [117]

Answer:

-2/7

Step-by-step explanation:

Going from (7,-1) to ( 21,-5) we see x (the 'run') increasing by 14 and y (the 'rise') decreasing by 4.  Thus, the slope of the line connecting these two points is m = rise/run = -4/14, or -2/7.

8 0
3 years ago
What is expression for 1/4y+3/8 factored
Llana [10]
1/4*x=3/8

1*x=3*4/8

X=12/8

3/2
3 0
3 years ago
I need help please...<br> I don't understand..
egoroff_w [7]

Answer:

ASA

Step-by-step explanation:

The two figures share one side

Their angles that are congruent are marked

Since one has a right angle, the other will have a right angle as well because it is a straight line

The order that the angles and sides are placed in is Angle, Side, Angle

5 0
3 years ago
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