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
iren [92.7K]
3 years ago
9

Select the correct answer

Mathematics
2 answers:
Bess [88]3 years ago
6 0

Answer:

Answer is C.

Step-by-step explanation:

The general formula for calculating combinations is:

\frac{n!}{k!(n-k)!}

Where n is the total number of options and k is the number of options in the combination.

In this case, sub in the numbers given in the question:

\frac{8!}{5!(8-5)!}

=\frac{8\times 7 \times 6 }{3 \times 2}

=8 \times 7

=56

AlexFokin [52]3 years ago
5 0

<u>Answer:</u>

The correct answer option is C. 56.

<u>Step-by-step explanation:</u>

We are given that a group of 8 friends (5 girls and 3 boys) plans to watch a movie, but they have only 5 tickets.

We are to find the number of combinations these 5 friends could

possibly receive the tickets.

Here, we will use the concept of combination as the order of the friends is not specific.

5C5+ (5C4 * 3C1) + (5C3*3C2) + (5C2*3C3)

=1+5*3 + 10*3 +10*1 = 1+15+30+10= 56

You might be interested in
Is anyone good at word problems?
Georgia [21]

Answer:

X + P = 34

330X + 250P = 9620

Step-by-step explanation:

The question tells us that there were 34 consoles sold. Therefore, we can draw the straight forward conclusion that whatever combination of consoles were sold, the number Xboxes (X) and PS4s (P) sold together has to be 34 in total. Thus:

X + P = 34

Now, we know the each Xbox sold for $330, and each PS4 sold for $250, and the total sales from the consoles bought was $9620. Thus:

$330X + $250P = $9620

Hope this helps!

4 0
3 years ago
At the craft store, Martina bought a bag of yellow and orange marbles. She received 15 marbles in all. 6 of the marbles were yel
vampirchik [111]

Answer:

40%

Step-by-step explanation:

6/15=2/5=4/10=40%

8 0
3 years ago
Hattie had $6600 to invest and wants to earn 4% interest per year. She will put some of the money into an
34kurt

Answer:

The amount of money that should be invested at the rate of 12% is $900 and the amount of money that should be invested at the rate of 10% is $2,100

Step-by-step explanation:

Let

x ------> the amount of money that should be invested at the rate of 12%

3,000-x -----> the amount money that should be invested at the rate of 10%

we know that

The sum of the interest on each of the accounts must be equal to the total interest.

Solve for x

therefore

The amount of money that should be invested at the rate of 12% is $900 and the amount of money that should be invested at the rate of 10% is $2,100

Hope this helps you!!!! :D

6 0
2 years ago
In order to avoid staying after work, a quality control analyst inspects the first 100 items produced that day. Which sampling m
Elanso [62]
The sampling method used in the situation of the quality control analyst in his attempt to avoid staying after work would be a non-probability sampling method. He used a nonprobability sampling called convenience sampling wherein the person gets a sample for easy and convenient results.
7 0
3 years ago
Jake spent a three-day weekend on the lake. On Saturday, he rented a pontoon boat for three hours and paid $435. On Sunday, he r
Maksim231197 [3]

Answer:

Has nobody answered this?

Step-by-step explanation:

5 0
3 years ago
Read 2 more answers
Other questions:
  • Find the probability that you will roll an even number exactly 5 times when you:
    8·2 answers
  • What is the answer for 4x+7=5
    13·2 answers
  • 16)
    8·2 answers
  • Which expressions are less that 610
    11·1 answer
  • Mary earned $345 babysitting in June. In July she earned $209, and she earned $198 in August. How much more did she earn in July
    9·1 answer
  • I really need help with this question so can someone really help me wit it and break it down to me so I could understand
    6·1 answer
  • The Boston Marathon is 26.2 miles. Use the times shown in the table to calculate the miles per hour for each division winner. Ro
    8·1 answer
  • WILL GIVE BRAINLIEST!!!! <img src="https://tex.z-dn.net/?f=log_%7B2%7D" id="TexFormula1" title="log_{2}" alt="log_{2}" align="ab
    10·1 answer
  • In the parallelogram below, X = ?
    15·2 answers
  • PLEASE HELP fast !!!
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!