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3 years ago

Y times 3=9 y =what

Mathematics

1 answer:

Nezavi [6.7K]3 years ago

6 0

Answer: 3 Y=3

Step-by-step explanation:

Y×3=9

3×3=9

You can also check this by rearranging it and dividing 9 by 3.

9÷3=3.

This works for any similar problem.

Example:

Y×4=12 Y=? Y=3

Rearrange it and divide 12 by 4.

12÷4=Y

12÷4=3

So Y×4=12 because 3×4=12

Hope this helps!

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A cone has a base area of 420mm and height of 180mm. What is the volume of the cone.

luda_lava [24]

Cone Volume = PI * radius^2 * height / 3, which can br rewritten as

Cone Volume = base area * height / 3

Cone Volume = 420mm * 60

Cone Volume = 25,200 cubic mm

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3 years ago

Kyasis travels at 55mph. How many miles will she travel in 4 hours?

xxMikexx [17]

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Step-by-step explanation: If she travels 55 miles per hour, for four hours, then you need to do 55 times 4. The answer is 220.

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3 years ago

PLEASE HELP ASAP!!!!!! What is the surface area of the pyramid?

Virty [35]

48 is the base, the area of each triangle is 44

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3 years ago

Please and thank you so much!

Amiraneli [1.4K]

Answer:

sorry i don't know the answer

Step-by-step explanation:

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3 years ago

M men and w women seat themselves at random in m+w seats arranged in a row. find the probability that all the women will be adja

WINSTONCH [101]

The correct answer is:

$\frac{(m+1)!w!}{(m+w)!}$

Explanation:

We want all w women to be seated together. There are w! ways to do this.

Since all women are seated together, we consider the as 1 block to be seated with the men.

There are m! ways of arranging the men. However, we also have the 1 block of women to seat; this makes (m+1)! ways to seat the men and block of women.

There are (m+w)! ways to arrange all of the men and women.

This makes our probability

$\frac{(m+1)!w!}{(m+w)!}$ .

For example, if there are 4 men and 3 women:

There are 3! = 6 ways to seat the women together. This makes 1 block of women.

There are 4! = 24 ways to seat the men together. Taking this with the block of women, we have (4+1)! = 5! = 120 ways to seat the men and block of women.

There are (4+3)! = 7! = 5040 ways to arrange 7 people.

This makes our probability 120(6)/5040 = 720/5040.

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4 years ago