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
seraphim [82]
3 years ago
9

The ratio of the number of hours it takes the three pipes A, B and C to fill an olympic pool is 4:9:12. Answer each of the follo

wing questions if it is known that the second pipe takes 72 hours to fill the pool.
How long would it take the three pipes to fill the pool if they are all turned on simultaneously?

PLEASE ANSWER I NEED LIKE RN
Mathematics
2 answers:
Andru [333]3 years ago
4 0

Answer:

your answer is 6 hours

Step-by-step explanation:

you have the 2nd pipe takes 72 hours so then you multiply 4 x 9 x 12 which is 432 and then you divide 432 by 72 which is 6 so it would be 6 hours

hope it helps ^^

Dafna11 [192]3 years ago
4 0

Answer:

18hr

Step-by-step explanation:

You might be interested in
Solve the following equation in terms of x.<br> 20x – 3y = 2<br><br> SHOW ALL WORK:)
Katarina [22]

Answer:

x = (z + 3y) / 20

Step-by-step explanation:

20x - 3y = z        

      +3y     +3y

-----------------------

20x = z + 3y

/20        /20

-----------------------

x = (z + 3y) / 20

7 0
3 years ago
Read 2 more answers
Pilar has a side job as a dog walker. She charges a flat rate of $20 per walk, plus $5 for every dog
kozerog [31]

y=5x+20

If you need to you can graph this in Desmos.

y is cost, 5 is price per dog, x is the number of dogs 5 and x times each other. y is total cost.

I hope this helps.

3 0
2 years ago
Read 2 more answers
How much is 0.509 km in meters
GuDViN [60]
The answer is 509 metres.
4 0
3 years ago
Read 2 more answers
Solve for x.<br> -2x-3=-7
prisoha [69]

-2x-3=-7

<em>add 3 to both sides</em>

-2x=-4

<em>isolate x by diving both sides by -2</em>

Answer: x=2

Hope that helps!

Please mark brainliest

3 0
3 years ago
Read 2 more answers
5.3.4 Journal: Two-Variable Systems Elimination <br><br> I need urgent help
max2010maxim [7]

Answer:

1) X stands for individual acts and y,  group acts. 2) Each scenario describes a different period in minutes, but each one respecting their different amounts (individual and group acts). 3) S=\left \{ 5,10 \right \}

Step-by-step explanation:

Completing with what was found:

<em> 1) Here is a summary of the scenario your classmate presented for the talent show:Main show The main show will last two hours and will include twelve individual acts and six group acts.Final show The final show will last 30 minutes and will include the top four individual acts and the top group act.The equations he came up with are: 12x+ 6y= 120, 4x+ y= 30</em>

1. What do x and y represent in this situation?

X stands for individual acts and y,  group acts.

Besides that, In the system of equation, they represent the time for x, and the time for y.

2. Do you agree that your classmate set up the equations correctly? Explain why or why not.

Yes, that's right. Each scenario describes a different period in minutes, but each one respecting their different amounts (individual and group acts). Either for 120 minutes or 30 minutes length. And their sum totalizing the whole period.

3. Solving the system by Elimination

\left\{\begin{matrix}12x+ 6y= 120\\ 4x+ y= 30\end{matrix}\right.\\\left\{\begin{matrix}12x+ 6y= 120\\ 4x+ y= 30\:*(-3)\end{matrix}\right.\\\left\{\begin{matrix}12x+ 6y= 120\\ -12x+ -3y= -90\end{matrix}\right.\\3y=30\Rightarrow y=10\\4x+(10)=30\Rightarrow 4x=20\Rightarrow x=5\\S=\left \{ 5,10 \right \}

8 0
3 years ago
Other questions:
  • PLEASE HELP ASAP! 20 POINTS BRAINLIEST IF RIGHT
    13·2 answers
  • keishas mom buhys 2 gallons of lemonade she serves 1 cup each gor 20 quests how many cups of lemonade remain
    9·1 answer
  • What is the closest value of K?
    13·1 answer
  • A triangular tent has a perimeter of 29 meters. Side a is 3 meters shorter than twice side b and side c is 4 meters longer than
    9·2 answers
  • What is the measure of the angle formed by the minute hand and hour hand of a clock in each case?
    6·1 answer
  • function g is a transformation of the parent exponential function, f(x)=2x. which graph shows funtion g? g(x)=2x +3
    5·1 answer
  • How many pound are in 9 kilograms
    14·1 answer
  • Convert the number to scientific notation.<br><br><br> 0.02 =
    11·2 answers
  • Together Cam and Brian had 24 pair of jeans. Cam had 4 less the Brian. Which inequality of equation could be used to find the nu
    12·1 answer
  • 517.8 is what percent of 384?Round to the nearest hundredth.
    12·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!