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3 years ago

Which of the following describes a compound event?

Mathematics

1 answer:

Bess [88]3 years ago

4 0

B. "rolling a 3 on a die and getting heads on a coin toss"

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In how many ways can you select a committee of four students of a group of nine students?

egoroff_w [7]

Answer:

126

Step-by-step explanation:

n! / (r! (n-r)!)

In this case n = 9 and r = 4

9!/ (4! * (9-4)!)

9!/ (4! * 5!)

= 126

9! = 9x8x7x6x5x4x3x2x1

7 0

3 years ago

Chris has 18 marbles and Kevin has 15 marbles. Chris gave half of his marbles to Kevin.

Helen [10]

Ok so…
The answer is: 15 more marbles
Because
18 divided by 2 is 9
15+9=24
Now Chris has 9
Kevin has 24
24-9=15
Hope this helps:)

5 0

2 years ago

For each equation, find y when x=-3. Then find x when y = 2 1. y = 6x + 8

crimeas [40]

⬇ Hey, the answer is down below! :) ⬇

For y: x = -3

For y it stays the same.

For x: y = 2

For x it stays the same too.

For 1.): $x = \frac{1}{6}y + \frac{-4}{3}$

Step-by-step explanation:

For y there is no step-by-step explanation unfortunately.

For x there isn't a step-by-step explanation too unfortunately.

⬇ For 1.) there is a step-by-step explanation! ⬇

For step 1 we should flip the equations.

6x + 8 = y

For step 2 we should add -8 to both sides.

6x + 8 + − 8 = y + −8

= 6x = y − 8

For step 3 we should divide both sides by 6.

$\frac{6x}{6} = \frac{y - 8}{6}$

= x = $x = \frac{1}{6}y + \frac{-4}{3}$

In result we should have $x = \frac{1}{6}y + \frac{-4}{3}$ as the answer!

7 0

3 years ago

Write 34% as a fraction in simplest form.

Murrr4er [49]

17/50 is 34% as a fraction!

3 0

3 years ago

What is 2/5 plus 3/15

Mandarinka [93]

Answer:9/15

Step-by-step explanation:

You change 2/5 to 6/15 by multiplying each by 3 then adding it to 3/15 to get 9/15.

4 0

3 years ago