Algebra and Trigonometry (6th Edition)
6th Edition
ISBN:9780134463216
Author:Robert F. Blitzer
Publisher:Robert F. Blitzer
ChapterP: Prerequisites: Fundamental Concepts Of Algebra
Section: Chapter Questions
Problem 1MCCP: In Exercises 1-25, simplify the given expression or perform the indicated operation (and simplify,...
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A linear function can just be a constant, or it can be the constant multiplied with the variable like x or y. If the variables are of the form, x2, x1/2 or y2 it is not linear. The exponent over the variables should always be 1.
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
Transcribed Image Text:LESSON 20 | SESSION 5
Refine Solving Problems Involving Percents
> Complete the Example below. Then solve problems 1–9.
Example
CONSIDER THIS...
You can describe the
price without tax
as 100%.
Ethan pays $31.50 for a jacket. The amount includes a sales tax of 5%.
What is the price of the jacket without the sales tax?
Look at how you could show your work using a diagram.
P = price of the jacket without tax
$31.50
Price of Jacket: 100% of p
Tax :5% of p
The amount Ethan pays, $31.50, is equal to 105% of the price of
the jacket, p.
105% = 1.05
PAIR/SHARE
How would the problem
change if $31.50
included a discount of
1.05p = 31.50
5% instead of a sales tax
SOLUTION
of 5%?
Apply It
1 The total simple interest owed on a loan of $8,000 after 60 months is $1,280.
What is the yearly interest rate on the loan? Show your work.
CONSIDER THIS...
There are 12 months in
a year.
everd
rdpim wol ovensr
PAIR/SHARE
How would you solve
the problem if you
wanted to know the
SOLUTION
monthly interest rate?
um Associates, LLC Copying is not permitted.
LESSON 20 Solve Problems Involving Percents
44
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