
Concept explainers
To find: The usual price excluding taxes.

Answer to Problem 7MPS
The usual price is
Explanation of Solution
Given information:
The doo on computer is
Tax on computer is
The amount paid by Robinson is
Calculation:
Assume that usual price is
Calculate the sale price.
Calculate tax on sale price.
Since the amount paid is sale price along with sale tax, so it can be expressed as.
Therefore, the usual price is
Chapter 11 Solutions
Algebra: Structure And Method, Book 1
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