Question

Plz help!!

solve for h: V= 1/3πr²h

solve for b: a=2(b-c)

solve for y: w=3x+7y

Answer 1

1)
`h = \frac{3V}{\pi {r}^(2) }`

2)
`b = (a)/(2) + 2`

3)
`y = (w - 3x)/(7)`

Explanation:

1)
`V= (1)/(3) \pi {r}^(2) h`

`= > V = \frac{ \pi {r}^(2) h}{3}`

`= > 3V = \pi {r}^(2) h`

`= > h = \frac{3V}{\pi {r}^(2) }`

2)
`a=2(b-c)`

`= > (a)/(2) = b - c`

`= > b = (a)/(2) + c`

3)
`w=3x+7y`

`= > w - 3x = 7y`

`= > y = (w - 3x)/(7)`