If you have $50 and spend 20, leaves you with 30, spend 15 leaves you with 15, spend 9 leaves you with 6, spend 6 leaves you with 0.  Why is the spend amount 50 and the total of what you were left with is 51?

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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If you have $50 and spend 20, leaves you with 30, spend 15 leaves you with 15, spend 9 leaves you with 6, spend 6 leaves you with 0.  Why is the spend amount 50 and the total of what you were left with is 51?

 

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