The answer is between 23 through 2. dont want to give the answer up :D hope this helps
5. x = 9
6. x = 8
Just solve by simplifying both sides of the equation and then isolating the variable.
Answer:
Step-by-step explanation:
Answer:
<h3>The number is 500</h3>
Step-by-step explanation:
Let the number be x
The quotient of a number divided by five is written as
![\frac{x}{5}](https://tex.z-dn.net/?f=%20%5Cfrac%7Bx%7D%7B5%7D%20)
the number decreased by 400 is written as
x - 400
Equate the two expressions
We have
![\frac{x}{5} = x - 400](https://tex.z-dn.net/?f=%20%5Cfrac%7Bx%7D%7B5%7D%20%20%3D%20x%20-%20400)
Multiply through by 5
That's
x = 5x - 2000
x - 5x = - 2000
- 4x = - 2000
Divide both sides by - 4
x = 500
Hope this helps you
f(x) = x^2 -5
Find f(3)
This means find x when it is 3 so just substitute 3 for x
f(3) = 3^2 -5
= 9 - 5
f(3) = 4