Question

Objective 2 Solve using the five "Steps for Solving Applied Problems." See Example 2 An appliance store advertises $20 \%$ off all of its refrigerators. Mr. Kotaris paid $\$ 399.20$ for the fridge. Find its original price.

Name: Problem 10, Chapter 3: Beginning and Intermediate Algebra
Uploaded: 2020-06-30T15:48:03-08:00
Duration: 57 s
Channel: Kristen Karbon
Description: Objective 2 Solve using the five "Steps for Solving Applied Problems." See Example 2 An appliance store advertises 20 % off all of its refrigerators. Mr. Kotaris paid 399.20 for the fridge. Find its original price.

   Objective 2
Solve using the five "Steps for Solving Applied Problems." See Example 2
An appliance store advertises $20 \%$ off all of its refrigerators. Mr. Kotaris paid $\$ 399.20$ for the fridge. Find its original price.

Beginning and Intermediate Algebra

Sherri Messersmith 2nd Edition

Chapter 3, Problem 10

Instant Answer

Solved by Expert Kristen Karbon

06/30/2020

Step 1

Step 1: Let's denote the original price of the refrigerator as X. Show more…

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Objective 2 Solve using the five "Steps for Solving Applied Problems." See Example 2 An appliance store advertises $20 \%$ off all of its refrigerators. Mr. Kotaris paid $\$ 399.20$ for the fridge. Find its original price.

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Key Concepts

Algebraic Equations

This concept is about formulating and solving equations that represent relationships between quantities in a problem. In applying percent discounts, an equation is used to relate the original price, the discount rate, and the final price paid, which then enables one to solve for the unknown original price.

Applied Problem Solving Strategies

This concept involves a systematic approach to solving real-world mathematical problems. The process includes understanding the problem, translating it into a mathematical model (often using an equation), solving the equation, and then interpreting the result in context.

Percent Discounts

This concept involves reducing an original amount by a specific percentage. It requires understanding that applying a discount means subtracting a certain percentage of the original price, or equivalently, multiplying the original amount by the complement of the discount percentage to obtain the sale price.

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