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
balandron [24]
2 years ago
7

1 pump fill resovoir in 60 hrs other 80 hrs other 90 hrs when they are together how long to fill resovoir? Rsm

Mathematics
1 answer:
FromTheMoon [43]2 years ago
8 0

Answer:

24.83 hours

Step-by-step explanation:

Given that :

Let time taken by pumps be :

Pump A = 60 hours

Pump B = 80 hours

Pump C = 90 hours

Recall :

Rate = 1 / time taken

The rates of the pumps are :

Pump A rate = 1 / 60

Pump B rate = 1/80

Pump C rate = 1/90

Combined rate : 1/60 + 1/80 + 1/90

Combined rate = (12 + 9 + 8) / 720 = 29/720

Combined rate = 29/720

The time taken together will be :

1 / combined rate = 1/(29/720) = 720 / 29 = 24.827 hours

You might be interested in
HELP!! correct answer gets brainliest
Llana [10]

Answer:

1/3 I think I did the math and if that's not right try 1/3:1/4 (<--ratio)

Step-by-step explanation:

3 0
3 years ago
Application 11. Dasha took out a loan of $500 in oeder to buy the # 1 selling book in the world, "Math, What is it Good For?" by
finlep [7]

Answer:

\boxed{\text{\$581.25; \$81.25}}

Step-by-step explanation:

The formula for the total accrued amount is

A = P(1 + rt)

Data:

P = $500

r = 6.5 % = 0.065

t = 30 mo

Calculations:

(a) Convert months to years

t = 30 mo × (1 yr/12 mo) = 2.5 yr

(b) Calculate the accrued amount

A = 500(1 + 0.065 × 2.5)

  = 500(1 + 0.1625)

  = 500 × 1.1625

  = 581.25

\text{Dasha will have to pay back }\boxed{\textbf{\$581.25}}

(c) Calculate the accumulated interest

\begin{array}{rcl}A & = & P + I\\581.25 & = & 500 + I\\I & = & 81.25\\\end{array}\\\text{The accumulated interest is }\boxed{\textbf{\$81.25}}

6 0
3 years ago
Each time you add the interior angles of a triangle, the sum is always 180 degrees. Therefore, you conclude that the sum of the
levacccp [35]

Answer:

This explains triangle sum theorem

Step-by-step explanation:

Which States that the sum of interior Anglea of a triaiare always 180°

3 0
3 years ago
Which statements are correct interpretations of this graph?
irina [24]
B and C. This problem comes down to equal fractions, so B is 2/3 and C is 1/1.5. And 2/3=1/1.5. So they are correct
5 0
3 years ago
Read 2 more answers
Dan wants to drink 4 gallons of water of water over 5 days. if he finished 13 quarts of water after day 4, how many more quarts
Alexandra [31]
Dan needs to drink 3 more quarts of water
7 0
3 years ago
Other questions:
  • Write a recursive formula to represent the total height of the nth stair above the ground if the height of each stair is 18 cm.
    12·1 answer
  • You deposit $6000 in an account earning 2% interest compounded monthly. How much will you have in your account in 15 years?
    9·1 answer
  • Use fraction multiplication to show how you can find the measure of a right angle.
    10·2 answers
  • Find the number of degrees in the third angle which is X of the triangle 42 and 100
    13·1 answer
  • an airplane is at an altitude of 1,200 feet. It begins to ascend at a rate of 925 feet per minute. How many minutes will it take
    10·2 answers
  • Michele was making tuna salad for a party. The recipe for 10 servings called for 8 oz of mayonnaise. A total of 240 people were
    9·2 answers
  • Explain or show how you could find by using the value of 5⋅3. If needed, use this diagram to support your reasoning.
    10·1 answer
  • URGENT!!!! I will mark brainliest IF correct!
    13·1 answer
  • Helpppppppppppppppppp
    7·1 answer
  • Bruce walks 3/4 mile in 1/5 hour. What is his speed in miles per hour? (label your answer mph) * worth 25 points and brainlyiest
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!