A forest covers 69,000 acres. A survey finds that 0.4% of the forest is old-growth trees. How many acres of old-growth trees are there?

acres of old-growth trees are there.

Step-by-step explanation:

Given: A forest covers acres. A survey finds that of the forest is old-growth trees.

To find: How many acres of old-growth trees are there?

Solution:

We have,

A forest covers acres.

Now, of the forest covers old-growth trees.

So, old-growth trees covers of .

Hence, acres of old-growth trees are there.

in mathematics, a function is a relationship between two variables such that the value of one of the variables, called the dependent variable, is determined by the value of the other variable, called the independent variable. there is a specific term we use to describe the set of independent variables of a function.