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
MAXImum [283]
3 years ago
14

A tank can be filled by one pump in 50 minutes and by another in 60 minutes. A third pump can drain the tank in 75 minutes. If a

ll 3 pumps work simultaneously, how long will it take to fill the tank? (Answer in hours)
Mathematics
1 answer:
Deffense [45]3 years ago
4 0

let's label each pump A, B, and C, just for convenience. A fills the tank by 1/50 every minute, B fills the tank by 1/60 every minute, and C drains it by 1/75 every minute. Now we can put them all into one function: t(1/50 + 1/60 - 1/75) = 1, where t = our time in minutes and 1 = the tank being full.

next, we solve for t: t = 300/7 minutes, or approximately 42.86 minutes.

You might be interested in
Can a right triangle have a leg that is 10inches long and a hypotenuse that is also 10inches long? Why or why not? Explain your
Evgesh-ka [11]

Answer:

No, the smallest ratio between a hypotenuse and a leg is in the 45/45/90 special case. In this case, the ratio between the hypotenuse and either legs is

√2:1

If the leg is 10 inches long, the smallest the hypotenuse can be is 10√2.

5 0
3 years ago
523 x = 523 x = last one
Sphinxa [80]

Answer:

X has an infinite number of solutions

or

0 = 0

Step-by-step explanation:

<em>Hey there!</em>

Given,

523x = 523x

Simplify

523x = 523x

-523x to both sides

0 = 0

<u>So x has an infinite number of solutions.</u>

<em>Hope this helps :)</em>

5 0
3 years ago
Read 2 more answers
Find the surface area. Round to the nearest tenth.
Anton [14]

Answer:

66.4 in^2

Step-by-step explanation:

Surface area is defined as the area around the surface of a 3-dimensional solid. The shape we are given here is a triangular prism with a square base. This means it contains one square and 4 triangles on the surface. To find the surface area, we just need to find the areas of all 5 surface shapes and add them up. We have been given that the square has a side length of 4 inches, meaning the area is 4^2 or 16. The area of a triangle is (1/2)base*height. The base length is 4 inches and the height is 6.3, and (1/2)*4*6.3 is 12.6. Note that, since there are four triangles, we have to multiply this value by 4 (12.6*4 = 50.4). Now we have the area of the square and the area of all the triangles put together, so we can just add them up:

16 + 50.4 = 66.4

8 0
2 years ago
Simplify -40/7+8-23/7
Oduvanchick [21]

Answer:

-1

Step-by-step explanation:

-40/7+8-23/7

= -40/7+8-23/7

= 16/7-23/7

= -1

7 0
2 years ago
Read 2 more answers
on the provided graph, plot the points where the following function crosses the x-axis and the y-axis g(x) = -5^x + 5, what does
SVEN [57.7K]

Answer:

see image

Step-by-step explanation:

5 0
3 years ago
Other questions:
  • The length of a rectangle is 2 times the width. If the perimeter is to be less than or equal to 66 meters. What are the possible
    13·1 answer
  • David walks 3 km north , and then turns east and walk 4 km
    6·1 answer
  • y- 8x-2 and y Rajib wrote the equations5. What can Rajib conclude about the solution to this system ofequations?o The point (2,1
    11·2 answers
  • In pathagrean theorem if c is 17 and b is 15 what is a
    6·2 answers
  • 60,000 is one tenth of
    9·1 answer
  • True or false the quotient of two negative numbers is positive
    13·1 answer
  • Can y’all help me please like bro omg idk
    7·2 answers
  • Irene wants to list the factors for 88.she writes 2, 4, 8, 11, 22, 44 and 88 is Irene correct?Explain.
    5·1 answer
  • PLZZZZZZZZ HELP ME ON THIS PLZZZZZZ
    5·2 answers
  • Which property is represented?<br> 7(t + U) = 7t + 70
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!