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Bas_tet [7]
3 years ago
15

John has 24 marbles in a container. he has 5 white marbles, 8 red marbles, 7 yellow marbles, and 4 green marbles. if John choose

s a marble at random, what is the probability John chooses a red marble?​
Mathematics
2 answers:
victus00 [196]3 years ago
8 0

Answer:

The probability of.john choosing a red marble is 33.333%

Step-by-step explanation:

All the marbles add up to 24 and there are only 8 red marbles so the ratio from the all the marbles and red is

8/24 turn that into a percentage and you'll get 33.333%

maksim [4K]3 years ago
3 0
8 red marbles/24 total marbles = 1/3 is the probability john chooses a red marble
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A cylindrical container of height 28cm and diameter 18cm is filled with water.The water is then poured into another container wi
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Asked on December 20, 2019 by

Ziya Vïvəķ

A cylindrical container with diameter of base 56cm contains sufficient water to submerge a rectangular solid of iron with dimensions (32×22cm×14cm). Find the rise in the level of water when the solid is completely submerged.

MEDIUM

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ANSWER

Given,

Diameter of the base of the cylindrical container d=56 cm

Hence, radius of the base of the cylindrical container r=

2

56

=28 cm

Dimensions of rectangular solid is (32 cm×22 cm×14 cm)

We know that when a body is completely submerged in a container containing water,

the rise in the volume of water in the container is equal to the volume of the body.

Let, the water rises to a height h.

Hence,

Volume of water rises in cylindrical container =Volume of the rectangular solid

πr

2

h=32×22×14 cm

3

7

22

×(28)

2

×h=9856 cm

h=

22×784

9856×7

cm

h=4 cm

4 0
4 years ago
Read 2 more answers
3+(7-5)to the power of 2 x 6
devlian [24]

Answer:

27

Step-by-step explanation:

PEMDAS

That is the order that you should solve complex equations

You first do equations in Parentheses

Then exponents

Then Multiplication or Division (whichever comes first in the equation)

Then Addition or Subtraction (again, whichever comes first in the equation)

So we first do the equation in parentheses, 7 - 5

7 - 5 = 2

Then we do the exponent (to the power of 2)

2 to the power of 2 is 4 (fun fact. 2 + 2 is the only equation that is the same in addition form and multiplication form)

Next, we multiply 4 by 6

4 x 6 = 24

And finally addition

3 + 24 = 27

7 0
3 years ago
(-2h3n2)(-5h2n2)<br> How
IRINA_888 [86]

Answer: 9h x 8n^2

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Step-by-step explanation:

if its ^2 )(power2) then the second reasonable answer is (7h-2h)(2n^2 x 2n^2)=9h x 4n^2 x4n^2 =9h 8n^2 or 17hn^2 but i leave as 9h 8n^2

You can expand only if multiplying 9hx4 for example but not combine the letters. The questions that ask you to mix are much different to this. but if you want to add them 9h+8n^2 =17hn^2

3 0
3 years ago
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