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
Aliun [14]
3 years ago
12

A bag contains ten identical blue marbles and ten identical green marbles. In how many distinguishable ways can five of these ma

rbles be put in a row if there are at least two blue marbles in the row and every blue marble is next to at least one other blue marble
Mathematics
1 answer:
ivann1987 [24]3 years ago
7 0

Answer: 11 different rows.

Step-by-step explanation:

As the marbles are identical, we do not really care for permutations (as we can really not difference them)

If we have 5 blue marbles, we have only one combination.

B-B-B-B-B

If we have 4 blue marbles, we have 3 combinations:

B-B-B-B-G,  G-B-B-B-B, B-B-G-B-B  

This is because the blue marbles need to be next to another blue one, so from here we can do the same analysis.

If we have 3 of them, we have 3 combinations.

B-B-B-G-G, G-B-B-B-G, G-G-B-B-B  

If we have 2 of them, we have 4 combinations

B-B-G-G-G, G-B-B-G-G, G-G-B-B-G, G-G-G-B-B

then we have 1 + 3 + 3 + 4 = 11 combinations

You might be interested in
Stan earns $12 per hour by working as an intern at a law firm. How much money does he earn in a week in which he works 28 hours?
torisob [31]

Answer:

D

Step-by-step explanation:

Stan works for 28 hours and gets paid $12 for each hour, so the amount of money he gets in total is $12*28 = $336.

8 0
2 years ago
43 is a number between
3241004551 [841]
There isn’t any correct answer
5 0
3 years ago
Point A is plotted at (-5, 3)
Diano4ka-milaya [45]

Answer:

quadrant 1

Step-by-step explanation:

quadrant 1 is (-,+)

5 0
3 years ago
Which one is equivalent
Elza [17]
The answer would be C) 2x + 10.

Expand ( -3x + 5x + 10 )

Simplify ( 2x + 10 ).


7 0
3 years ago
Read 2 more answers
If m&lt;7 is 2x + 30 and m&lt;28 is 3x - 10, find the<br> following:
topjm [15]

Answer:

x = 32

m∠7 = 94

m∠8 = 86

m∠3 = 94

Step-by-step explanation:

(2x + 30) + (3x - 10) = 180

5x + 20 = 180

5x = 160

x = 32

m∠7 = 2(32) + 30 = 94

m∠8 = 3(32) - 10 = 86

<u>or</u>

m∠8 = 180 - 94 = 86

<u>m∠3 ≈ m∠7</u> (corresponding angles)

3 0
3 years ago
Other questions:
  • Let a, b, c, d be four integers (not necessarily distinct) in the set {1, 2, 3, 4, 5}. The number of polynomials x4 + ax3 + bx2
    6·1 answer
  • Which line has a slope of -3/4 and y-intercept of 3/2
    13·2 answers
  • How many meters are there in 64cm? Show work Uwu
    11·2 answers
  • The sum of three numbers is 96. The third number is 6 less than the first. The second number is 3 times the third. What are the
    15·1 answer
  • There were 7,500 tickets sold for a concert, 20% of which were general admission. How many general tickets were sold?
    11·1 answer
  • What is the slope of the line? y = 10​
    14·1 answer
  • A plant starts out at 12 inches tall and grows 1 inch per week . Write an equation for this situation. What is the slope ? Is th
    6·1 answer
  • Need help with this
    14·1 answer
  • 100 tenths= ? hundredths<br> A) 10<br> B) 100<br> C) 1,000<br> D)10,000
    5·2 answers
  • Who helped / guide you in answer your module?​
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!