Well there is to equations here that must be equal. X+20=4X Four times old means 4X+X=5X.
If you work to simply the problem you get something that looks like this:
X+20=5X
20=4X
x=20/4 or 5 y/o!
Answer:
Axis of symmetry: x=-2
Maximum point: (-2,8)
Step-by-step explanation:
The given function is
.
We can complete the square to reveal the axis of symmetry and the vertex.
We factor to get:

We add the zero pairs and obtain a perfect square:



The function is now in the form
, where V(h,k) =(-2,8) is the vertex.
His annual salary is $75,530. If Ed receives a paycheck every two weeks, what is his biweekly salary? Brittany Monroe is a legal secretary. Her biweekly salary is<span>$1,650.00</span>