Formula for the Volume of rectangular prism:
[tex]\begin{gathered} V=l\cdot w\cdot h; \\ l\text{ is long} \\ w\text{ is width} \\ h\text{ is high} \end{gathered}[/tex]
They ask you solve the expresion for w, that means that you have to find a expression like w=?
To do that, you should be move l and w to the other side of equation...
Start moving l,
Tell me, what is doing l to w.. what math operation...
??
Exactly, multiply.. the pass to other side to do the oposite operation.. in this case divide..like this..
[tex]\frac{V}{l}=w\cdot h[/tex]
we do the same with h.. and thats all.. then we take:
[tex]\frac{V}{l\cdot h}=w[/tex]
or the same
[tex]w=\frac{V}{l\cdot h}[/tex]
That's your answer
