Ask question

Ask question

All categories

Thepotemich [5.8K]

3 years ago

13

On a math test, 5 out of 20 students got an A. If three students are chosen at random without replacement, what is the probabili

ty that all three got an A on the test?

1 answer:

Y_Kistochka [10]3 years ago

7 0

Answer:

5

Step-by-step explanation:

You might be interested in

Sole for y<br> k = p/2(y+w)<br> y =

mojhsa [17]

Answer:

<u>Answer</u><u>:</u><u> </u><u>y</u><u> </u><u>=</u><u> </u><u>(</u><u>2</u><u>k</u><u> </u><u>-</u><u>pw</u><u>)</u><u>/</u><u>p</u>

Step-by-step explanation:

$k = \frac{p}{2} (y + w)$

multiply 2 on both sides:

$k \times 2 = 2 \times \frac{p}{2} (y + w) \\ \\ 2k = p(y + w)$

open the bracket:

$2k = py + pw$

subtract pw from both sides:

$2k - pw = (py + pw) - pw \\ 2k - pw = py$

divide p on both sides:

$\frac{2k - pw}{p} = \frac{py}{p} \\ \\ y = \frac{2k - pw}{p}$

4 0

3 years ago

Read 2 more answers

Solve each equation. check you solution.<br> (7t - 2) - (-3t + 1) = -3(1 - 3t)

Lynna [10]

(7t-2) - (-3t+1) = -3*(1-3t)
First distribute:
7t-2+3t-1 = -3+9t
Now get all the terms with 't' on the same side by subtracting/adding:
7t+3t-9t = -3+2+1
Combine the terms:
1t=0
t=0

Check:
Plug in 0 for t and see if both sides of the equation come out the same:
Does (7(0)-2) - (-3(0)+1) = -3(1-3(0)) ?
(-2) - (1) = -3(1) ?
-3 = -3 ?
Yes! It works, so t=0!

5 0

3 years ago

2. Which graph represents the solution to the given system? (1 point)

matrenka [14]

Answer:

1000000000000000million

4 0

2 years ago

12x+5=4x? Show steps, please.

gavmur [86]

Answer:

x = 5/-8

Step-by-step explanation:

4x = 12x + 5

4x - 12x = 5

-8x = 5

x = 5/-8

6 0

3 years ago

You want to convert 1 Kilogram to milligrams. You already know that 1 kilogram = 1,000 grams. Explain how knowing hat 1 gram = 1

Alenkasestr [34]

The answer Is one million milligrams (tongue twister) to find this out you simply know that a kilogram is 1000 times a gram and a gram is a thousand times a milligram.
1000x1000= 1,000,000
Your welcome.
BRAINLIEST PLEASE

4 0

3 years ago