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.