Mathematics: 9. A water glass can hold 2/9 of a litre of water. How many glasses of water can be filled with a 3 litre bottle?

Step-by-step explanation:The formula of a surface area of a sphere:R - radiusWe have:Substitute: divide both sides by 4πThe formula of a volume of a sphere:Substitute:...

9. A water glass can hold 2/9 of a litre of water. - id9297074603, NetherisIsTheQueen

Ответ:

elijaahstepp041

30.01.2022

Mathematics

13.5 glasses of water

Step-by-step explanation:

If:

1 water glass can hold 2/9 of a litre

x water glasses can hold 3 litres.

Therefore, expressing it as a litre to glass ratio, we have::

$\dfrac{2/9}{1}=\dfrac{3}{x} \\\dfrac{2}{9}x=3\\$Divide both sides by$ \dfrac{2}{9}\\x=3 \div \dfrac{2}{9}\\x=3 \times \dfrac{9}{2}\\\\x=13.5$

Therefore, 13.5 glasses of water can be filled with a 3 litre bottle.

0,0(0 оценок)

Ответ:

khehnai

25.08.2020

Mathematics

$\large\boxed{C)\ 166\dfrac{2}{3}\pi\ ft^3}$

Step-by-step explanation:

The formula of a surface area of a sphere:

$S.A.=4\pi R^2$

R - radius

We have:

$S.A.=100\pi\ ft^2$

Substitute:

$4\pi R^2=100\pi$ divide both sides by 4π

$R^2=25\to R=\sqrt{25}\\\\R=5\ ft$

The formula of a volume of a sphere:

$V=\dfrac{4}{3}\pi R^3$

Substitute:

$V=\dfrac{4}{3}\pi(5)^3=\dfrac{4}{3}\pi(125)=\dfrac{500}{3}\pi=166\dfrac{2}{3}\pi$

0,0(0 оценок)

9. A water glass can hold 2/9 of a litre of water. How many glasses of water can be filled with a 3 litre bottle?

Ответ:

Ответ:

Ask your question to the AI advisor

More tips

Answers on questions: Mathematics

Ask an AI advisor a question