Answer:
there are 100 children in the class
Your answer is $1620.
To solve this, first look at what we're given. $324 is spent a month on fuel, and fuel is 20% of their income. Therefore, $324 is 20% of the family's income per month.
Now, to solve this, we're looking for 100% of the family's income. 20% is 1/5 of 100%, so therefore $324 is 1/5 of the family's full income.
To get 100%, then multiply 20% by 5 to get 100%, and therefore multiply $324 by 5 to get the full income.
$324 * 5 = 1620, or your answer.
Good luck!
Answer:-7
Step-by-step explanation:
Answer: 
Step-by-step explanation:
Given
The volume of the spherical solid is 
It is melted to form a solid cube
Suppose the edge length of the cube is 
The volume of the sphere is 
![\Rightarrow 123,456=a^3\\\Rightarrow a^3=123,456\\\text{Factorising 123,456}\\\Rightarrow a^3=2^6\times 3\times 643\\\\\Rightarrow a=\sqrt[3]{2^6\times 3\times 643} \\\\\Rightarrow a=4\sqrt[3]{ 3\times 643}\\\\\Rightarrow a=49.79\ m](https://tex.z-dn.net/?f=%5CRightarrow%20123%2C456%3Da%5E3%5C%5C%5CRightarrow%20a%5E3%3D123%2C456%5C%5C%5Ctext%7BFactorising%20123%2C456%7D%5C%5C%5CRightarrow%20a%5E3%3D2%5E6%5Ctimes%203%5Ctimes%20643%5C%5C%5C%5C%5CRightarrow%20a%3D%5Csqrt%5B3%5D%7B2%5E6%5Ctimes%203%5Ctimes%20643%7D%20%5C%5C%5C%5C%5CRightarrow%20a%3D4%5Csqrt%5B3%5D%7B%203%5Ctimes%20643%7D%5C%5C%5C%5C%5CRightarrow%20a%3D49.79%5C%20m)
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