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slava [35]
3 years ago
8

An aquarium tank can hold 6000 liters of water. There are two pipes that can be used to fill the tank. The first pipe alone can

fill the tank in 40 minutes. The second pipe can fill the tank in 60 minutes by itself. When both pipes are working together, how long does it take them to fill the tank?
Mathematics
1 answer:
Usimov [2.4K]3 years ago
7 0
The answer is 24 minutes
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Can someone please ell me the answer to this, please? :)
harkovskaia [24]

Answer:

- 328 / 9

Step-by-step explanation:

- 36 + ( - 4 / 9 )

= - 36 - ( 4 / 9 )

= - 36 ( 9 / 9 ) - 4 / 9

= ( - 36 x 9 ) / 9 - ( 4 / 9 )

= ( - 324 / 9 ) - ( 4 / 9 )

= ( - 324 - 4 ) / 9

= - 328 / 9

8 0
2 years ago
Find the edge length of the cube
const2013 [10]

Answer:

5

Step-by-step explanation:

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3 years ago
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tankabanditka [31]

Answer:

30.96 m^2

Step-by-step explanation:

Side length of the square is also the diameter of the semicircle so:

r = 0.5 * 12 m = 6 m

Since you want the area of the shaded area, you have to subtract the area of both semi circles from the area of the square:

Square Area - Semi Circle Area - Semi Circle Area = Shaded Region Area

(12 m * 12 m) - (0.5 * 3.14 * 6^2 m) - (0.5 * 3.14 * 6^2 m)

= 144 - 56.52 - 56.52

= 30.96 m^2

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3 years ago
What is the solution for x? 9-x/5=3
navik [9.2K]

Answer:

x = 30

Step-by-step explanation:

9-x/5=3

Subtract 9 from each side

9-9-x/5=3-9

-x/5 = -6

Multiply each side by -5

-x/5 *-5 = -6*-5

x = 30

8 0
3 years ago
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What is the points for C on the graph?
qaws [65]
The points for C is (12, 10.5)
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2 years ago
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