Math Help - transposing a sqrt

1. transposing a sqrt

Goodday
I have the following equation , but i'm trying to find Q.
How would i transpose this to put Q on the other end of the =

d = sqrt (4*Q/pi*v)

2. Originally Posted by robhare
Goodday
I have the following equation , but i'm trying to find Q.
How would i transpose this to put Q on the other end of the =

d = sqrt (4*Q/pi*v)
$d=\sqrt{\dfrac{4Q}{v\pi}}$?

If so, then $d^2=\dfrac{4Q}{v\pi}$ (I've squared both sides)

And $d^2v\pi=4Q$ (Timesed both sides by $v\pi$)

So $Q=\dfrac{d^2v\pi}{4}$ (Divided both sides by 4)

3. thanks , perfect

4. Hi , help one more time please .
How would the equation look if i wanted to isolate v on the other side of the = .
thanks
rob

5. Go back to $d^2v\pi= 4Q$
v is not yet "isolated" because it is multiplied by $v\pi$. So do the opposite: divide both sides by $v\pi$.