You are at the electronics store picking out a new television. You have a coupon for $75.00 off the price of a Samsung television and you also notice that the store is having a 15% off New Year’s Sales Event. You confirm with the store manager that the store will accept the coupon in addition to giving store discount.   a. Write an equation where x is the original price of the television and c(x) is the price of the television after the $75 discount.   b. Write an equation where x is the original price of the television and p(x) is the price of the television after the 15% discount.   Use the composite functions c(p(x)) and p(c(x)) to determine which would be most beneficial to you if you purchased a Samsung television with an original price of $1,200.00. Make sure to state what the final cost would be for each situation (before sales tax). Show all work to support your answer.       Hint: Which will give you a cheaper price; applying the coupon first then the % discount or applying the % discount then the coupon.

ENGR.ECONOMIC ANALYSIS
14th Edition
ISBN:9780190931919
Author:NEWNAN
Publisher:NEWNAN
Chapter1: Making Economics Decisions
Section: Chapter Questions
Problem 1QTC
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Make sure to answer all parts. Make sure to show all work and provide evidence when instructed to do so. Make sure to state your claim using a complete sentence. If stating an amount of money, you must include $.

 

 

You are at the electronics store picking out a new television. You have a coupon for $75.00 off the price of a Samsung television and you also notice that the store is having a 15% off New Year’s Sales Event. You confirm with the store manager that the store will accept the coupon in addition to giving store discount.

 

a. Write an equation where x is the original price of the television and c(x) is the price of the television after the $75 discount.

 

b. Write an equation where x is the original price of the television and p(x) is the price of the television after the 15% discount.

 

  1. Use the composite functions c(p(x)) and p(c(x)) to determine which would be most beneficial to you if you purchased a Samsung television with an original price of $1,200.00. Make sure to state what the final cost would be for each situation (before sales tax). Show all work to support your answer.

 

 

 

Hint: Which will give you a cheaper price; applying the coupon first then the % discount or applying the % discount then the coupon.

2. If the original price of the cupcakes were $12.50, what would you pay
after your discounts according to the information in part 12
c(p(x))= (.9x)-3
c(p(12.50))= (.9(12.50))-3
= (11.25) -3
$8.25
OR
c(p(x)) = (x - 10x)-3
c(p(12.50))= (12.50 10(12.50))-3
- (12.50 -1.25) - 3
11.25-3
$8.25
Transcribed Image Text:2. If the original price of the cupcakes were $12.50, what would you pay after your discounts according to the information in part 12 c(p(x))= (.9x)-3 c(p(12.50))= (.9(12.50))-3 = (11.25) -3 $8.25 OR c(p(x)) = (x - 10x)-3 c(p(12.50))= (12.50 10(12.50))-3 - (12.50 -1.25) - 3 11.25-3 $8.25
friend's birthday. You have a coupon for $3.00 off the price of a dozen
cupcakes and also notice that the store is having a sale for 10% off the price
of the cupcakes.
1.Write an equation where x is the original price of the cupcakes and c(x) is
the price of the cupcakes after the $3 discount.
c(x) = x-3
Price of the
cupcakes
after $3
discount
2. Write an equation where x is the original price of the cupcakes and p(x) is
the price of the cupcakes after the 10% discount
P(X) = x-.10 x
the original
price of the
cupcakes
Price of cupcakes,
after discount
=
original price of $3 coupon
the cupcakes
10% of the
original price of
the cupcakes
or
P(x) = .90x
Price of cupcakes
after discount
H
90% of the
original price of
the cupcakes
Transcribed Image Text:friend's birthday. You have a coupon for $3.00 off the price of a dozen cupcakes and also notice that the store is having a sale for 10% off the price of the cupcakes. 1.Write an equation where x is the original price of the cupcakes and c(x) is the price of the cupcakes after the $3 discount. c(x) = x-3 Price of the cupcakes after $3 discount 2. Write an equation where x is the original price of the cupcakes and p(x) is the price of the cupcakes after the 10% discount P(X) = x-.10 x the original price of the cupcakes Price of cupcakes, after discount = original price of $3 coupon the cupcakes 10% of the original price of the cupcakes or P(x) = .90x Price of cupcakes after discount H 90% of the original price of the cupcakes
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