Question

Evaluate the expression when $k=20$.

$\left(80-k\right)\%\text{of}30$

Short answer

The solution of expression $\left(80-k\right)\%\text{of}30$ is 18.

Step-by-step solution

Step 1. Given Information.

It is given that $k=20$.

Step 2. Calculation.

Substitute $k$

$\begin{array}{l}\left(80-20\right)\%\text{of}30\\ 60\%\text{of}30\left[\text{subtract}\right]\end{array}$

Therefore, the expression is

$\begin{array}{l}\text{60\%of30}=\frac{60}{100}\cdot 30\left[\text{writepercentageasafraction}\right]\\ =0.60\cdot 30\left[\text{multiply}\right]\\ =18\left[\text{multiply}\right]\end{array}$

Step 3. Conclusion.

The percentage $60\%\text{of}30$ is 18.