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nika2105 [10]
4 years ago
5

It takes an inlet pipe of a small swimming pool 20 minutes less to fill the pool than it takes an outlet pipe of the same pool t

o empty it. through an error, starting with an empty pool, both pipes are left open and the pool is filled after 4 hours. how long does it take the inlet pipe to fill the pool and how long does it take the outlet pipe to empty it?

Mathematics
1 answer:
andrew11 [14]4 years ago
7 0

Answer:

It takes the inlet pipe 60 minutes or 1 hour to fill the pool and takes the outlet pipe 80 minutes or 1.33 hours to empty the pool

Step-by-step explanation:

Please kindly check the attached files for details.

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Answer:

Step-by-step explanation:

If the regular price of a T-shirt is 10 USD and the store sells off its wares at 80% of its regular price, then the price at which the store would still the aforementioned T-shirt would be 80% of its 10 USD price.

80% of $10 =

0.8 * 10 = $8

This means that the price at which the T-shirt will go for, due to the ongoing sales will be $8.

Also, being asked to find the 10% and 20% of $10 is just as simple

10% of $10 =

0.1 * 10 = $1

20% of $10 =

0.2 * 10 = $2

Therefore, the 10% and 20% of $10 is $1 and $2 respectively.

3 0
3 years ago
How do you write the following statement as an equation: a number N is 4 less than 8 ??
kiruha [24]
4 less than 8 is a number N

8 - 4 = n
or
n = 8 - 4
6 0
4 years ago
Kyle drew 4 polygons labeled A,B,C, and D. Figure A has twice as many sides as Figure B. Figure B has 3 vertices. Figure C has h
erma4kov [3.2K]

Answer:

Figure A - hexagon

Figure B - triangle

Figure C - rectangle

Figure D - octagon

Step-by-step explanation:

If figure B has 3 vertices (angles), then that means it is a triangle (3 sides)

So that means figure A has 6 sides, (hexagon)

And figure D has 8 vertices, so 8 sides (octagon)

And if C has half as many, that would be 4 (rectangle)

7 0
4 years ago
Ayo i need help on math <br> 3x-45=12
Leto [7]

x=19

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2ax-b=cx+d solve for x​
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Answer:

x = (d + b) / (2a - c)

Step-by-step explanation:

2ax-b = cx+d

2ax - cx = d + b

x (2a-c) = d + b

x = (d + b) / (2a - c)

7 0
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