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
allsm [11]
4 years ago
14

Working alone at its constant rate, pump X pumped out \small \frac{1}{4} of the water in a tank in 2 hours. Then pumps Y and Z s

tarted working and the three pumps, working simultaneously at their respective constant rates, pumped out the rest of the water in 3 hours. If pump Y, working alone at its constant rate, would have taken 18 hours to pump out the rest of the water, how many hours would it have taken pump Z, working alone at its constant rate, to pump out all of the water that was pumped out of the tank?
Mathematics
1 answer:
polet [3.4K]4 years ago
3 0

Answer:

aahahhahh

Step-by-step explanation:

i knnow it tHiS

\int\limits^a_b {x} \, dx \int\limits^a_b {x} \, dx \int\limits^a_b {x} \, dx \int\limits^a_b {x} \, dx \int\limits^a_b {x} \, dx \int\limits^a_b {x} \, dx \left \{ {{y=2} \atop {x=2}} \right. x_{123} \frac{x}{y} \sqrt[n]{x} \sqrt{x} x^{2} \\ \leq \geq \neq \pi \alpha \beta \left[\begin{array}{ccc}1&2&3\\4&5&6\\7&8&9\end{array}\right]  \lim_{n \to \infty} a_n \left \{ {{y=2} \atop {x=2}} \right. \int\limits^a_b {x} \, dx

You might be interested in
This question is so hard! What’s 1+1? I have been trying to solve it for 398,947,284,383,837 days!
ziro4ka [17]

Answer:

1+1=2

Step-by-step explanation:

put 1 finger up on one hand and on the other hand put 1 finger up then put both of your finger together and you get 2

3 0
3 years ago
Read 2 more answers
The number n of people using the elevator in an office building every hour is given by n = t2 − 10t + 40. In this equation, t is
Morgarella [4.7K]

Answer:

The number of persons using the elevator at any hour is never going to be less that 15.

Step-by-step explanation:

To solves this you have to suppose that there are at least 15 persons on the elevator, and the equation is converted into an inequation:  

t^2-10t+40

Now you transform the inequation back to an equation to solve it:

t^2-10t+25=0

You need to know if there is any negative solution for the equation, to do this you can use the discriminant for a quadratic equation:

D=b^2-4ac

In this case, you have a=1, b=-10, c=25

D= (-10)^2-4(1)(25)\\D=0

Since the discriminant is 0 and a<0 the equation always is going to be positive. Therefore, the number of persons using the elevator at any hour is never going to be less than 15.

6 0
4 years ago
Look at this number sentence.
oksian1 [2.3K]

Answer:

1/7

Step-by-step explanation:

You have to multiply across the top then the bottom.

8 0
3 years ago
Read 2 more answers
Explain your answer !!<br><br> Have a great day <br><br> Will give brainlst
lesantik [10]

<u><em>The increased heat, disruption to the water cycle and loss of shade would take a deadly toll on billions of people and livestock. Poverty and death would also descend on many of the 1.6 billion people who currently rely directly on forests for their livelihoods, including for harvesting food and medicine. </em></u>

<u><em>When Amazon rainforest disappears, so does Amazon rain. That's because air passing over forests picks up moisture given off by trees and plants, fueling rains. ... When those trees disappear, so does some of that rain.</em></u>

<u><em>The loss of trees and other vegetation can cause climate change, desertification, soil erosion, fewer crops, flooding, increased greenhouse gases in the atmosphere, and a host of problems for indigenous people.</em></u>

<u><em>In conclusion...Without trees, we all die. Besides providing oxygen for us to breathe, trees make life on earth sustainable. ... Trees affect everything from the air we breathe to the rain that falls from the sky. Without a robust population of trees, we die and so does our planet.</em></u>

<u><em></em></u>

<u><em>-From TheRealMarinette</em></u>

<u>Pls Do Not Copy N Paste.</u>

7 0
3 years ago
Janet has three coins.
tatyana61 [14]

Answer:

Janet has coins worth 252.5, 101, and 50.5.

Step-by-step explanation:

Let us call the three coins a,b, and c.

The first coin a is 5 times another coin<em> (let's say </em>b); therefore,

a = 5b,

and the third coin is 2 times the value of another coin<em> (it's coin </em>b<em>):</em>

<em />c =2b<em>.</em>

The total worth of all coins is 404; therefore,

a+b+c =404

or

5b+b+2b =404

8b =404

\boxed{b = 50.5}

with the value of b in hand, we find a and c:

a = 5b = 5(50.5)

\boxed{a = 252.5}

and for c:

c = 2 b = 2 (50.5)

\boxed{c = 101}

Thus, Janet has 3 coins worth 252.5, 101, and 50.5.

8 0
4 years ago
Other questions:
  • For a given product demand, the time-series trend equation is 53 – 4x. The negative sign on the slope of the equation:
    14·1 answer
  • Idbuhefygbhjbjwsjnwsnfhbrf
    13·2 answers
  • The equation T squared = A cubed shows the relationship between a planet's orbital period, T, and the planet's mean distance fro
    5·1 answer
  • My question is how to solve a solution set that are inequalities with two variables.
    14·1 answer
  • Plssss help???????? don’t understand
    14·2 answers
  • What is the value of any number raised to the 0 power?
    10·1 answer
  • HELP PLEASE
    15·2 answers
  • If p = 2 and q = 8, the value of p3 + V64 q ls____​
    15·2 answers
  • I need help on this guys. My friend asked me what to do and I don’t know LOL
    5·1 answer
  • Solve for x:<br><br> 2x-1/3 - 3x/4 = 5/6
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!