2 years ago

Find the number of permutations in the word “swimming”.

1 answer:

3 0

I believe it is 8!/(2!*2!)
You have a total of 8 letters but you have 2 letters that repeat twice each.
(8*7*6*5*4*3*2*1)/(2*1*2*1)
8*7*6*5*3*2 = 10,080 ways

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The pet store had 6 puppies selling for $104 each and 12 kittens selling for $24 each. Today on 2 puppies and 8 kittens were lef

Lunna [17]

You multiply 2*104 that is for puppies and then you do 8 by 24 cause that is for kittens and you get 208:192

8 0

2 years ago

Sam gave jen 1/2 of his jujubes .jen ate 1/2 ofthe jujubes and gave rest to kyle.kyle kept 8 of the jujubes and gave the last 10

erastovalidia [21]

Let x = the # jujubes Sam had
he gave x/2 to jen
jen eats half of it = 1/2(x/2) = x/4
the remaining x/4 he gave to kyle
kyle kept 8 and gave 10 to Kim
so
   x/4 - 8 = 10
   x/4 = 18
   x =72
thus jen had 36 jujubes
jen eat 18 jujubes

3 0

2 years ago

A deli offers lunch special that comes with soup a sandwich and a dessert the soup choices are tomato or onion the sandwich choi

stich3 [128]

So to solve this you would make a tree with the first soup choices branching off into the other choices. Then when you wrote down all the possibilitys you would count all them and get your answer or you could just do 2*4*2=16
<span> so there would be 16 possibilitys </span>

6 0

2 years ago

PLEASE HELP A pizza parlor sells 320 pizzas per night when they charge $9.00 per pizza. The owner believes increasing the price

Sonja [21]

1. $9.00+$0.15=$9.15
2. 320-4=316

6 0

2 years ago

A group of campers is going to occupy 3 campsites at a campground. There are 17 campsites from which to choose. In how many ways

Alexeev081 [22]

Answer:

Campsites be chosen in 680 ways.

Step-by-step explanation:

Given:

Number of campsites= 17

Number of campsites that are to be occupied=3

To Find:

Number of ways can the campsites be chosen=?

Solution:

Combination:

In mathematics, a combination is a way of selecting items from a collection where the order of selection does not matter. Suppose we have a set of three numbers P, Q and R. Then in how many ways we can select two numbers from each set, is defined by combination.

nCr = n(n - 1)(n - 2) ... (n - r + 1)/r! = n! / r!(n - r)!

No of ways in which campsites can be chosen= $\frac{17!}{3!(17-3)!}$ 17C3

=> $\frac{17!}{3!(14!)}$

=> $\frac{15\times16\times17}{3\times 2\times 1}$

=> $\frac{4080}{6}$

=>680

5 0

2 years ago