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3 years ago

How wide and how long is the actual swimming pool

Mathematics

1 answer:

Ber [7]3 years ago

4 0

Answer:

ig 50 meters long by 25 meters wide

Step-by-step explanation:

if wrong pls forgive me

mark me brainliest pls

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Solve the system of equations algebraically.<br> 4x - 3y = 6<br> 6x - 5y = 6

muminat

Answer: x=6 y=6

Step-by-step explanation:

$\displaystyle\\\left \{ {{4x-3y=6} \atop {6x-5y=6}} \right.\\$

Since the right parts of the equation are equal, therefore the left parts of the equation are also equal:

$4x-3y=6x-5y\\4x-3y+5y=6x-5y+5y\\4x+2y=6x\\4x+2y-4x=6x-4x\\2y=2x\\$

Divide both parts of the equation by 2:

$y=x\\Hence,\\4x-3x=6\\x=6\\Thus,\\x=y=6$

3 0

2 years ago

In the diagram the radius of the outer circle is 2x cm and the radius of the inner circle is 6 cm. The area of the shaded region

stich3 [128]

let's find the area of the outer circle and the inside circle

the inside's circle area

A= π x 6²=36π

the outer's

A' = π x 4x²= 4πx²

A'-A=4πx²- 36π=160πcm² equivalent to x²- 9=40, so x²=49 implies x =sqrt(49)=7, x=7.

5 0

3 years ago

A cylinder with a radius of 1 cm and a height of 21 cm has the same volume as a cone with a height of 7 cm. What is the radius o

Natasha_Volkova [10]

Answer:

Step-by-step explanation:

The formula of a volume of a cylinder:

$V=\pi r^2H$

r - radius

H - height

We have r = 1cm and H = 21cm. Substitute:

$V=\pi(1^2)(21)=21\pi\ cm^3$

The formula of a cone:

$V=\dfrac{1}{3}\pi r^2H$

r - radius

H - height

We have V = 21π cm³ and H = 7cm. Substitute:

$\dfrac{1}{3}\pi(r^2)(7)=21\pi$ <em>divide both sides by π</em>

$\dfrac{1}{3}(7)(r^2)=21$ <em>divide both sides by 7</em>

$\dfrac{1}{3}r^2=3$ <em>multiply both sides by 3</em>

$r^2=9\to r=\sqrt9\\\\r=3\ cm$

5 0

3 years ago

Read 2 more answers

Increase 100kg by 10%

Assoli18 [71]

Answer:

110kg

Step-by-step explanation:

You multiply 100 by 0.1 (because this is 10% as a decimal number) and you get 10. Add 10 to 100

8 0

3 years ago

I give you easy question for easy points. Ok? Ok. 500+5

Mashcka [7]

Answer:

THANK YOU 505

Step-by-step explanation:

4 0

3 years ago

Read 2 more answers