Answer:
Explained below.
Step-by-step explanation:
The question is:
Please answer me these questions or one: v please. My math class room is 700 m2, how much is 1/4 of the room? How long is 3/4 of the room? . How many minutes is 3/5 of a half hour? . It takes 4/7 of a liter of paint to paint a square meter of wall, if we want to paint 2/5 of a square meter of wall, how much paint will we need? . If it takes 2/5 of an orange to make a glass of orange juice, how many oranges do you need to make 2 and a half glasses?
(1)
Compute 1/4th of the math class room as follows:
![=700\times\frac{1}{4}\\=175](https://tex.z-dn.net/?f=%3D700%5Ctimes%5Cfrac%7B1%7D%7B4%7D%5C%5C%3D175)
Thus, 1/4th of the math class room is 175 m².
(2)
Compute 3/4th of the math class room as follows:
![=700\times\frac{3}{4}\\=525](https://tex.z-dn.net/?f=%3D700%5Ctimes%5Cfrac%7B3%7D%7B4%7D%5C%5C%3D525)
Thus, 3/4th of the math class room is 525 m².
(3)
Compute 3/5th of half an hour as follows:
![=30\times \frac{3}[5}\\=18](https://tex.z-dn.net/?f=%3D30%5Ctimes%20%5Cfrac%7B3%7D%5B5%7D%5C%5C%3D18)
Thus, 3/5th of half an hour is 18 minutes.
(4)
A square meter of wall required 4/7 liter of paint.
Then 2/5 of a square meter will require,
![=\frac{4}{7}\times \frac{2}{5}\\\\=\frac{8}{35}](https://tex.z-dn.net/?f=%3D%5Cfrac%7B4%7D%7B7%7D%5Ctimes%20%5Cfrac%7B2%7D%7B5%7D%5C%5C%5C%5C%3D%5Cfrac%7B8%7D%7B35%7D)
Thus, 8/35 liter of paint will be used to pain /5 of a square meter of the wall.
(5)
1 glass of orange juice can be made using 2/5 of an orange.
Then 2 and half glass will require,
![=\frac{2}{5}\times 2\frac{1}{2}\\\\=\frac{2}{5}\times \frac{5}{2}\\\\=1](https://tex.z-dn.net/?f=%3D%5Cfrac%7B2%7D%7B5%7D%5Ctimes%202%5Cfrac%7B1%7D%7B2%7D%5C%5C%5C%5C%3D%5Cfrac%7B2%7D%7B5%7D%5Ctimes%20%5Cfrac%7B5%7D%7B2%7D%5C%5C%5C%5C%3D1)
Thus, 1 orange will be required to make 2 and half glass of orange juice.