Assignment Rational Equation (Appendix D)
Week Four
MAT/117
Appendix D
The Environment
Application Practice
This preview has intentionally blurred sections. Sign up to view the full version.
View Full Document
Answer the following questions. Use Equation Editor to write mathematical expressions
and equations. First, save this file to your hard drive by selecting Save As from the File
menu. Click the white space below each question to maintain proper formatting.
1.
The cost, in millions of dollars, to remove
x
% of pollution in a lake modeled by
a.
What is the cost to remove 75% of the pollutant? C= 6,000 / 200 – 2 (75)
C= 120 cost to remove 75%
b.
What is the cost to remove 90% of the pollutant? C= 6,000 / 200 – 2 (90)
C= 300 cost to remove 90%
c.
What is the cost to remove 99% of the pollutant? C= 6,000 / 200 – 2 (99)
C= 3,000 cost to remove 99%
d.
For what value is this equation undefined? The equation is undefined when you use
100%, C=6000/200200, C=6000/0, C becomes undefined when divided by zero.
e.
Do the answers to sections a. through d. match your expectations? Explain why or
why not. Yes because when you do equation based on percentages it makes sense. In
This is the end of the preview.
Sign up
to
access the rest of the document.
 Spring '11
 landers
 Algebra, Equations, Average cost, Whitetailed deer

Click to edit the document details