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4 years ago

A box contains 500 marbles. The result of 20 marbles pulled at random from the box is given below.

Mathematics

2 answers:

Anni [7]4 years ago

8 0

Answer:

100 black marbles

Step-by-step explanation:

The experimental probability of a black marble is

P(black) = 4/20 = 1/5

We expect that out of the 500 marbles in the box, 1/5 of them are black

1/5 (500) = 100

There should be 100 black marbles

Shalnov [3]4 years ago

3 0

100 black marbles can be pulled

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Whitch number 4,5,6 is a solution of x+5>10

Alex73 [517]

: 6

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- i just plugged in every number in.
4 + 5 > 10
9 > 10? nope.

5+5 > 10
10 > 10 ? nope.

6+5 > 10
11 > 10? YES.

6 0

3 years ago

16 POINTS!

posledela

Answer:

The mean is: 85

Step-by-step explanation:

First you need to add everything up :

1 * 2 = 2

2 * 1 = 2

3 * 3 = 9

4 * 5 = 20

5 * 4 = 20

6 * 3 = 18

7 * 2 = 14

(I multiplyed them all first because i was fast than doing 4+4+4+4+4 because its the same as 4 * 5)

then add them all up 2+2+9+20+20+18+14=85

Answer:

The median is: 4

Step-by-step explanation:

Get the data in NUMERICAL ORDER (smallest to largest), then eliminate the extremes until we're at the middle. (basically chopping off the end till you get to the middle) Therfore The answer would be 4.

Answer:

The mode would be: 4

Step-by-step explanation:

The mode is Get the data in NUMERICAL ORDER, and see which value is the most frequent (we can have more than one mode).

Answer:

25%

Step-by-step explanation:

firs you do 5 divided by 20 because there are 20 x's. this will = 0.25

0.25 = 25%

I hope I get brainiest. Sorry for taking forever. Have a nice day!

4 0

3 years ago

Please help!! I have to find x and y!!

GarryVolchara [31]

Answer:

X= 17.5

Step-by-step explanation:

the outside of the triangle always = 180

so you need to add up all the sides and equal to 180

5x+35+x+5+2x=180

add like terms

8x+40=180

get the x alone

x=17.5

3 0

3 years ago

HALP PLAEZ IM STRUGGLING<br> brainliest to whoever answers them all!

makvit [3.9K]

Answer:

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10. 24:6, buttons per controller: 4

11. 335:67, dollars per shirt: 5

12. 14:2, pies per minute: 7

13. 80:8, dollars per student: 10

Step-by-step explanation:

<em>You put the largest number at the front and divide. For example, 80 ÷ 8 = 10 there you have the rate. Hope this helps! :D</em>

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3 years ago

Below is a two-way table for a college basketball team during the NCAA playoffs. Complete the table. What is the value of each b

Elanso [62]

Answer:

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2 years ago