4. If the perimeter of an equilateral triangle is 18, the
length of the altitude of this triangle is

If the perimeter of an equilateral triangle is 18, the

length of the altitude of this triangle is 5.196

Let

y------> Scott’s gross income in dollars

x-----> number of hours worked

we know that

-------> equation

Find the numbers of hours in week

Substitute the value of x in the equation

therefore

the answer is

$