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sergeinik [125]
3 years ago
8

The three sides of a triangle are n. 4n + 1. and 4n - 2. If the perimeter of the triangle is 71 feet, what is the length of each

side
Mathematics
1 answer:
Charra [1.4K]3 years ago
3 0

Answer:

8

Step-by-step explanation:

n+(4n+1)+(4n-2) = 71

n+4n+1+4n-2= 71

   9n-1=71

    9n= 72

      n=8

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Eight people attend the theater "together and sit in a row with exactly eight seats. Suppose the eight people consist of three m
Nata [24]

Answer:

They can be seated in 120 differents ways.

Step-by-step explanation:

Taking into account that there are 3 couples and every couple has an specific way to sit, for simplify the exercise, every couple is going to act like 1 option and it's going to occupy 1 Place. If this happens we just need to organize 5 options (3 couples and 2 singles) in 5 Places (3 for a couple and 2 for the singles)

It means that now there are just 5 Places in the row and 5 options to organized. So the number of ways can be calculated using a rule of multiplication as:

<u>      5         </u>*<u>        4          </u>* <u>       3           </u> *  <u>        2     </u>  * <u>         1         </u> = 120

 1st place    2nd Place    3rd place        4th Place    5th Place

Because we have 5 options for the 1st Place, the three couples and the 2 singles. Then, 4 options for the second Place, 3 options for the third place, 2 for the fourth place and 1 option for the 5th place.

Finally, they can be seated in 120 differents ways.

8 0
2 years ago
Which expression equals 93102
Karo-lina-s [1.5K]

Answer:

you got this

Step-by-step explanation:

goodluck

4 0
2 years ago
DONT FORGET TO GRAPH IT!! ALL ANSWERS THAT DONT ANSWER MY QUESTION, WILL BE REPORTED!
DaniilM [7]

Answer:

n ≥ 1/4

Step-by-step explanation:

I wish I could add a picture, but I can't, so you'll have to graph it by yourself.

6 0
3 years ago
Lisa has a rectangular trampoline that is 6 feet long and 12 feet wide. What is the area of her trampoline in square feet?
Cloud [144]
6*12 = 72ft²

The area of the trampoline is 72ft²

Hope this helps! :)
3 0
3 years ago
Please help me please!
Mumz [18]

Step-by-step explanation:

a,b) you can place all 17 in the middle and both circle will have 17 each. then remove 2 and place one each on separate sides. you can do this 8 times so that at the you'll end up with 1 in the middle and 8 each on separate sides.

the ways to do is then 9.

7 0
2 years ago
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