Question

Solve for k in the following equation if m=3 and n=1.54mn+20n=k

Answer 1

The given equation is

$4mn+20n=k$

Let's replace m = 3, and n = 1.5.

$4(3)(1.5)+20(1.5)=k$

We do the products.

$\begin{gathered} 18+30=k \\ k=48 \end{gathered}$

Therefore, k = 48. B is the answer.