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
Veronika [31]
2 years ago
6

A swimming pool holds 600,000 liters of water. The pool has two drainage pipes. When the pool is completely full, the first pipe

alone can empty it in 200
minutes, and the second pipe alone can empty it in 120 minutes. When both pipes are draining together, how long does it take them to empty the pool?
Mathematics
1 answer:
Travka [436]2 years ago
8 0

Answer:

1 hour

Step-by-step explanation:

You might be interested in
The perimeter of a trapezoid is 39a – 7. Three sides have the following lengths: 9a, 5a + 1, and 17a – 6. What is the length of
Airida [17]
We know the perimeter is the total sum of all sides of the shape, we can use this to form an equation: the perimeter=1st side + 2nd side + 3rd side + 4th side 39a-7=9a+(5a+1)+(17a-6)+4th side.
Collect like terms to get 39a-7=31a-5+4th side
If we move everything but the 4th side over to the left we can solve 
C. 8a-2=4th side is the correct answer
3 0
2 years ago
Read 2 more answers
Anyone free to help??
Vera_Pavlovna [14]

Answer:

(1,-2)

Step-by-step explanation:

w = ( x , y ) = ( 1 , -2 )

3rd choice

7 0
3 years ago
I need help brosssssssssss
gavmur [86]
Answer
B. Is the answer.
5 0
3 years ago
• help please ASAP ..
g100num [7]

Answer:

c

Step-by-step explanation:

7 0
3 years ago
Read 2 more answers
Find the surface area of the pyramid.
zaharov [31]
You would Mylutilpy 14x16
8 0
3 years ago
Other questions:
  • Why can you use fraction multiplication to check the answer to a fraction division problem? How do you use multiplication to che
    14·2 answers
  • Ratio of 15 days over 3 jobs
    12·1 answer
  • Vicky had 12 cookies left over after the bake sale. She had sold 75 cookies in the morning and 40 cookies in the afternoon. How
    6·2 answers
  • Find the midpoint between the two points (1, -7) and (-1, -23).
    14·1 answer
  • Plz help...............................
    7·2 answers
  • A retailer buys a coat in bulk at a unit price of $45. The coat is marked up to 28% to sell in the store. What is the price of t
    11·1 answer
  • A pancake recipe requires three and one third cups of milk to one cup of flour. If one and one quarter cups of milk is used, wha
    14·1 answer
  • Use the least common denominator to write an equivalent fraction for each fractoin a .5/6 2/9 b. 1/12 3/8 c. 5/9 2/15
    10·1 answer
  • PLEASE HELP EXPLAIN THIS!!!!!
    6·2 answers
  • A shirt costs $5 less than a sweater. Together they cost<br> $25. How much does the sweater cost?
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!