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Sergio039 [100]

3 years ago

9

how many people do you need to gather to be sure that at least two of them have birthdays in the same month?

2 answers:

frosja888 [35]3 years ago

6 0

You would need 13. Since there are 12 months, if you gather 12 people and they each have different months, there would be 1 person per month. If you add 1 more person, it is safe to assume that that person will be with another person in a certain month.

tia_tia [17]3 years ago

3 0

When 23 people<span> are gathered, there is more chance than not that 2 of them have the same birthday. In order to help understand this, you should consider how many PAIRS of people there are. With </span>23 people<span> there are 253 different pairings i.e. more than half of the 365 possible birthdays.</span>

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Paige used 1 1/2 cups of flour and 1/4 of butter to make 12 muffins. How much flour and butter would Paige need for 18 muffins?

maks197457 [2]

Answer:

3/4 cup

Step-by-step explanation:

12 divided by 2 is 6

18 - 12 = 6

we are going to need half of 1 1/2 cup of flour

1 cup = 1/2

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3 years ago

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vekshin1

Answer:

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Step-by-step explanation:

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Korvikt [17]

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$a+b=30$

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$b=30-a$

and substituting this into the second gives

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3 years ago

The circumference of the base of a cone is 24 inches. The slant height of the cone is 20 inches.

loris [4]

The surface area of a cone with circumference base of 24π inches and slant height of 20 inches is 384π inches² in terms of π.

<h3>Surface area of a cone</h3>

surface area = πr(r + l)

where

r = radius
l = slant height

Therefore,

l = 20 inches

24π = 2πr

r = 12

Therefore,

surface area = π(12)(12 + 20)

surface area = 12π(12 + 20)

surface area = 12π × 32

surface area = 384π inches²

learn more on surface area here: brainly.com/question/2847956

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IRINA_888 [86]

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