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
trasher [3.6K]
3 years ago
6

A certain pipe can be used to fill a pool with water in 2 hours. A second pipe can be used to fill the pool in 4 hours. How long

does it take to fill the pool when both pipes are used at the same time?​
Mathematics
1 answer:
Kryger [21]2 years ago
6 0

Answer:

1 1/3 hours

Step-by-step explanation:

Pipe 1 alone:

fills the pool in 2 hours

in 1 hour, it fills 1/2 of the pool

Pipe 2 alone:

fills the pool in 4 hours

in 1 hour, it fills 1/4 of the pool

Pipe 1 and Pipe 2 working together:

fill the pool in x hours

in 1 hour, they fill 1/x of the pool

Working together, in 1 hour the two pipes fill 1/2 + 1/4 of the pool.

Working together, in 1 hour the two pipes fill 1/x of the pool.

Therefore,

1/2 + 1/4 = 1/x

2/4 + 1/4 = 1/x

3/4 = 1/x

x = 4/3

x = 1 1/3

Answer: 1 1/3 hours

You might be interested in
Joel has 48 oranges he puts 7 in a bag. How many bags can he fill?
Gre4nikov [31]

Answer:

  6 bags

Step-by-step explanation:

  48/7 = 6 remainder 6

Joel can fill 6 bags with 7 oranges each. He will have 6 oranges left over.

4 0
2 years ago
Read 2 more answers
What are the 2 points ,, red or orange ,, what is the solution
denpristay [2]

Answer:

(-2, 4)

Step-by-step explanation:

y = -3x - 2

y = -x +2

=> -3x - 2 = -x +2

    -3x + x = 2 + 2

    -2x = 4

        x = -2

     -x + 2 = y

      2 + 2 = y

            4 = y

8 0
3 years ago
Write the ratio 28 to 56 in simplest form
Andre45 [30]
The ratio shown in fraction form would be; \frac{28}{56}

Now to convert it to its simplest form, you need to find their greatest common factor; (so in this case it would be 28...cause 28 goes into 56 evenly)
*Now divide both terms by 28

28 ÷ 28 = 1
56 ÷ 28 = 2
 
so your ratio 28 to 56 in simplest form is.. \frac{1}{2}
Hope this helps :)
6 0
3 years ago
Read 2 more answers
Find the two square roots of 81
pishuonlain [190]
9 is one of them I think
3 0
3 years ago
7
MrRissso [65]

Answer:

B

Step-by-step explanation:

4 0
3 years ago
Other questions:
  • Which exponential function has a growth factor of 1/2
    9·2 answers
  • Find x, y and z. <br><br> A. B. C. Or D.
    7·2 answers
  • What is 0.0578 in scientific notation?
    11·1 answer
  • What goes into 9 and 14 evenly
    5·2 answers
  • 9. PRODUCTION Brown Pencil factory can
    5·1 answer
  • If I have a right rectangular prism with a base area of 22 units and a height of 6 units, what is the volume of this prism?
    11·1 answer
  • Algebra help plss222
    5·2 answers
  • 5(4x+6) simplify and solve
    13·1 answer
  • Don has 6 pieces of pipe. Each piece is 2 feet 6 inches long.
    13·1 answer
  • Which of the following is NOT an equation?
    9·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!