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marysya [2.9K]
3 years ago
12

If you have three friends, how many ways can you introduce them to someone

Mathematics
2 answers:
Inessa05 [86]3 years ago
8 0

Answer:

Step-by-step explanation:

Here there are three friends.  The number of ways of introducing them to someone is the same as the number of ways of arranging three objects in a row.

Hence this is equal to 3! ways

3!=3x2x1=6 ways

mezya [45]3 years ago
6 0
He answer is 3! ways...want to SEE ?? 

<span>your friends are A, B, and C </span>



<span>A, B, C </span>
<span>A, C, B </span>
<span>B, A, C </span>
<span>B, C, A </span>
<span>C, A, B </span>
<span>C, B, A </span>
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Mr. Corpulence decides to go on a diet where he will lose 4 pounds a month he now weighs 288 pounds
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Answer:

y=-4x+288

Step-by-step explanation:

every month he loses 4 lbs starting from his weight is at now

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If the mean if these numbers is 9 what is x ? <br><br> 16,3,x,5
siniylev [52]
The mean is the average number meaning that it is all the numbers in a set added together and divided by how many number are in the set. In this case there are 4 numbers (16, 3, whatever number x is, and 5). So, to find out what x is, first you multiple 4 by the known mean which is 9.
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Then you simply subtract 36 from all the known numbers to find x.
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What are the next 3 numbers in the number sequence?<br> 23,31,41, 53?
aksik [14]

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Step-by-step explanation:

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2 years ago
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L 5.2.3 Quiz: Two-Variable Systems: Substitution
Misha Larkins [42]

Answer:

We get x=3 and y=21

The ordered pair will be: (3,21)

Step-by-step explanation:

We need to use the substitution method to solve the system of equations.

y = 10x-9\\y = x + 18

For substitution method we substitute the value of x or y from one equation to other.

Let:

y = 10x-9--eq(1)\\y = x + 18--eq(2)

Putting value of y from equation 2 into equation 1

y=10x-9\\Put\:y=x+18\\x+18=10x-9\\x-10x=-9-18\\-9x=-27\\x=\frac{-27}{-9}\\x=3

So, we get value of x=3

Now, for finding value of y, We substitute the value of x

Find value of x from equation 2

y=x+18\\x=y-18

Now, putting value of x in equation 1

y=10x-9\\Put\:x=y-18\\y=10(y-18)-9\\y=10y-180-9\\y-10y=-189\\-9y=-189\\y=\frac{-189}{-9}\\y=21

So, we get value of y=21

So, We get x=3 and y=21

The ordered pair will be: (3,21)

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