help please. what does x equal.

Answer:

35 times, or D

Step-by-step explanation:

A bag contains 5 red marbles, 6 blue marbles, 3 green marbles, 4 black marbles, and 2 yellow marbles. A marble will be drawn from the bag and replaced 100 times. What is a reasonable prediction for the number of times a green or black marble will be drawn?

A quick lesson on probability:

The probability of an event is: (the number of ways what you want can happen) / (total number of outcomes possible). For example, in a coin flip, there is 1 way to get heads, and 2 possible outcomes. Thus, the possiblity  of flipping a coin and getting heads is:

(1 way to get heads) / (2 possible outcomes) = 1/2

Then, if we were to flip the coin 100 times, we would expect about 1/2 of the times to be heads, so we should expect heads 50 times.  

On to the problem.

There are 3 green marbles and 4 black marbles, so there are 7 ways to draw a green or black marble.

Then, there are 5 + 6 + 3 + 4 + 2 = 20 possible outcomes.

Using the formula to find the probability, substitute the values we just found.

(the number of ways what you want can happen) / (total number of outcomes possible) =

(7 ways to draw a green or black marble) / (20 marbles that can be drawn) = 7/20 chance of getting a green or black marble.

Then, because there is a 7/20 chance of getting what we want, and there are 100 draws, we can say that an we should get green or black

7/20 * 100 = 35 times, or D

Feel free to ask any questions! :)

Answer:

$2.00

Step-by-step explanation:

Answer:

98 m

Step-by-step explanation:

A 1/2 is the same as 0.5 and % means out of a 100

[tex] \frac{24.5}{100} \times 400 \\ = 98[/tex]

Answer:

98

Step-by-step explanation:

24.5% = 0.245

400 x 0.245 = 98

Answer:

11 is the answer

Step-by-step explanation:

Answer:

11

Step-by-step explanation:

to find one of the addend

subtract another one of the addend by the sum

eg : 9 + __= 20

20 - 9 = 11

now we can check

9 + 11 = 20

hope this helps

thanks bye

Answer: 44

Step-by-step explanation:

88/2 = 44

Answer:

44 because 50% of 88 is 44

Step-by-step explanation:

88 / 100 * 50

0.88 * 50

44

or in this case when it is 50% just do:

88 / 2

Mark me as brainliest if you want.

Answer:

5m

Step-by-step explanation:

The volume doesnt count so do height × width

Answer:

SA = 50

Step-by-step explanation:

Formula for surface area of a rectangular prism : A=2(wl+hl+hw)  

hope this helps :)

Answer:

0.136

Step-by-step explanation:

If you have a calculator with statistical functions, this problem is straightforward.

Use the normcdf function as follows:

normcdf(300,350,400,50) = 0.136

This result is the probability that a worker makes between $300 and $350 per week:  0.136

Answer: The 3rd one.

Step-by-step explanation:

Answer:

The vertex, (1.5, 40), tells us that it takes 1.5 seconds for the ball to reach its maximum height of 40 feet.

Step-by-step explanation:

...i think..

Answer:

168

Step-by-step explanation:

Answer: 11·10·9 = 990 ways

Step-by-step explanation: first can be chosen 11 different way, second 10 different way and third 9 different way

Answer:

Answer: 11·10·9 = 990

Step-by-step explanation:

HOPE THIS HELPS!! :)

Answer:9720

Step-by-step explanation:

Step-by-step explanation:

5: -7=x,-1=y so (-7,-1)

6. 7=x,8=y so (7,8)

Hope that helps :)

Answer: Is there supposed to be a picture??? If there is there isn't one

Step-by-step explanation:

Answer:

y = 5

Step-by-step explanation:

y = 3x - 13

y = 3(6) - 13

y = 18 - 13

y = 5

Answer:

f=-552 /343 or 5=1 and 209/343

Step-by-step explanation:

Answer:

Step-by-step explanation:

Answer:

x = 1

Step-by-step explanation:

From ΔABC and ΔDEF,

m∠C = m∠F [Given]

AC = DF [Given]

BC = EF [Given]

Therefore, ΔABC ≅ ΔDEF [By SAS property of congruence]

AB = DE [CPCTC]

2x - 1 = 5x - 4

5x - 2x = 4 - 1

3x = 3

x = 1

Answer:

[tex]-\frac{39}{4}a + \frac{52}{5}[/tex]

Step-by-step explanation:

[tex]-\frac{60}{6}a + \frac{84}{8} + \frac{1}{4}a - \frac{1}{10}[/tex]

= [tex]-\frac{120}{12}a + \frac{3}{12}a + \frac{420}{40} - \frac{4}{40}[/tex]

= [tex]-\frac{117}{12}a + \frac{416}{40}[/tex]

= [tex]-\frac{39}{4}a + \frac{52}{5}[/tex]

I hope this helps!! ^-^

The answer is B.

z x 1 = z

z x 0.37 = 0.37z

= z + 0.37z

:)

Answer:

yes we can write as follows :-

14:22

21:33

28:44

hope it helps

Answer:

36 dollars per person and they all will pay 2 dollars each the large group will hit a wall

Answer:

100 for 6 years a 6 mnt i.r of 8%

100×6÷12

=50

50÷12×6

25 of 8%

25×8÷100

2 ans..

Answer:

6.16 miles

Step-by-step explanation:

When solving word problems like these, I like to start by drawing a picture.

So, Glera starts at her home and moves north by 5.8 miles. Then, she walks west by 2.1 miles to the library. The problem wants you to find the distance from her home to the library.

I've attached a drawing I made to help me visualize the problem. The distance from her home to the library is the hypotenuse of the triangle. To solve for it, you would use the equation [tex]a^{2}[/tex] + [tex]b^{2}[/tex] = [tex]c^{2}[/tex].

a and b are the sides of the triangle, and c is the hypotenuse.

[tex]5.8^{2}[/tex]  + [tex]2.1^{2}[/tex] = [tex]c^{2}[/tex]

33.64 + 4.41 = [tex]c^{2}[/tex]

38.05 = [tex]c^{2}[/tex]

To find c, you would take the square root of 38.05, which is about 6.16 if you use a calculator.

So, the distance from her home to the library is 6.16 miles!

Answer:

1/2

Step-by-step explanation:

6 - 4(0) = 6 (incorrect answer)

6 - 4(1/2) = 4 (correct answer)

6 - 4(2) = -2 (incorrect answer)

6 - 4(4) = -10 (incorrect answer)

I hope this helps :)

Answer:

please first tell me the numbers written

Answer:

48987~اايلممماالمنهلبه

Answer:

27 degrees

Step-by-step explanation:

SinY = 5/11

Sin^-1(5/11) = y

y = 27.03

to the nearest degree is 27