Question

1 A protected wilderness area in the shape of a rectangle is 5 kilometers long and$12,000 per mile to construct. What will it cost to install the trail? Note that 1 milIt will cost $ to install the trail.(Type an integer or a decimal.)

Answer 1

Explanation

We are asked to find the cost that will be used to install the trail

Thus, for the question, we will first have to find the perimeter of the wilderness

The first step will be to convert the dimensions to mile

$\begin{gathered} 5km=\frac{5}{1.6}miles \\ \\ 3.8km=\frac{3.8}{1.6}miles \end{gathered}$

So the perimeter will be

$\frac{5}{1.6}+\frac{3.8}{1.6}+\frac{5}{1.6}+\frac{3.8}{1.6}=11\text{ miles}$

Next, we will find the Amount by multiplying by the unit cost

$11\times\text{ \ 12,000=\ 132,000}$

Therefore, it will cost $132,000 to install the trail