1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Ne4ueva [31]
3 years ago
11

There are 10 doors to a coliseum. In how many ways can a person go in and out if one can enter any door but leave using another

door? Use permutation formula (P(n,r)) to solve.
Mathematics
1 answer:
love history [14]3 years ago
5 0

Answer:

90 is the answer

Step-by-step explanation:

P(10,2) = \frac{10!}{(10-2)!} = \frac{10!}{8!} = \frac{10x9x8!}{8!}

10x9

=90

You might be interested in
Question 2 of 39
rewona [7]

Answer:

D) 32

Step-by-step explanation:

Given;

series: 56, 54, 50, 38, 34, ....

find the difference between successive numbers;

56         54        50             38            34             x

     2            4             12              4             2            

The highest difference between the numbers is  12, after which it decreases to 4 and finally back 2.

The next number "x" is calculated as;

34 - 2  = x

34 - 2 = x

32 = x

Therefore, the next number should be 32.

4 0
3 years ago
Mr.Jensen bought some pens at a school supply store, including 15 black pens.
Usimov [2.4K]

Answer:

50

Step-by-step explanation:

.3x = 15

Divide both sides by .3

x = 50

4 0
3 years ago
What is the value of ⅝?
Rama09 [41]

The value of the given expression is 5/8 = 0.625.

What is a fraction?

Any number of equal parts is represented by a fraction, which also represents a portion of a whole. A fraction, such as one-half, eight-fifths, or three-quarters, indicates how many parts of a particular size there are when spoken in everyday English.

The given expression is 5/8

Now by taking the simple division operation, we can write

       = 5/8

       = 0.625

Hence, the value of the given expression is 5/8 = 0.625.

To learn more about fractions, visit:

brainly.com/question/78672

#SPJ4

8 0
2 years ago
456 divided by 8 <br> WHOEVER ANSWER FIRST WILL GET 72 POINTS
OverLord2011 [107]

Answer:

57

Step-by-step explanation:

7 0
3 years ago
Read 2 more answers
Cora uses 6.2 pints of white paint and blue paint to paint her bedroom walls. 2 5 of this amount is white paint, and the rest is
zhenek [66]

Answer:She used 3.72 pints of blue paints for the wall

Step-by-step explanation:

Total Quantity of Blue and white paint =6.2 pints

Quantity  of White paint =2/ 5 x 6.2 pints = 2.48 pints

Quantity of blue paint =Total Quantity -Quantity  of White paint

=6.2 pints-2.48 pints

=3.72 pints

5 0
3 years ago
Other questions:
  • -8x+4+(-3). Combine like terms, making zeros, and using distributive property.
    15·1 answer
  • Tommy has a history test on Monday morning. He writes down the number of minutes he studies for the test each day for a week. Us
    7·2 answers
  • Pam kept track of the puppies available for adoption at the shelter. After 4 hours, there were 7 puppies available for adoption.
    12·2 answers
  • Complete the inequality statement with the symbol that makes it true. 28.005 ___ 28.05 &gt; &lt; =.
    11·2 answers
  • Christina was born in 1987.When she turns 32,the internet will be 50 years old.In what year was the internet invented?
    10·2 answers
  • PLEASE HELPS!!<br> 4x-6&lt;2x+8<br> a. x&lt;1<br> b. x&gt;1<br> c. x&lt;7<br> d. x&gt;7
    10·2 answers
  • If a hospital patient is given 100 milligrams of medicine which leaves the bloodstream at 14% per hour, how many milligrams of m
    9·1 answer
  • What is the equation of a line where the slope is the fraction where it goes up 8 and over 3, and the y intercept is -5?
    12·2 answers
  • Find sin(α) in the triangle.
    11·1 answer
  • PLEASE PLEASE HELP AND I NEED YOU TO DO IT FAST BECAUSE I HAVE TO GO SOON
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!