Question

Solve for the indicated variable in each mathematical formula.

Answer 1

To solve for a variable, you have to isolate that variable onto one side.

1.

Firstly, multiply both sides by 2: $2A=(a+b)h$

Next, divide both sides by a + b and your answer will be: $\frac{2A}{a+b}=h$

2.

For this, divide both sides by πr², and your answer will be $\frac{V}{\pi r^2}=h$

3.

Firstly, subtract both sides by 2πr²: $SA-2\pi r^2=2\pi rh$

Lastly, divide both sides by 2πr, and your answer will be: $\frac{SA-2\pi r^2}{2\pi r}=h$