Easy Proportion, but not for me

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Homework Help Overview

The discussion revolves around a problem involving proportions and equations related to interest calculations. Participants are exploring different methods to approach the problem, which involves determining values based on given rates and totals.

Discussion Character

  • Exploratory, Conceptual clarification, Mathematical reasoning

Approaches and Questions Raised

  • Some participants suggest using a single equation instead of proportions, while others express uncertainty about the complexity of different methods. There is a discussion about the relevance of the principal, rate, and interest in formulating the problem.

Discussion Status

The conversation is active, with participants sharing various perspectives on how to approach the problem. Some guidance has been offered regarding the relationship between variables and equations, but there is no explicit consensus on the best method to use.

Contextual Notes

Participants are navigating the constraints of the problem, including the need to accommodate specific variables and the potential limitations of guess and check methods.

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EDIT: Problem Solved please delete.
 
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There's a much easier way to do it with one equation and no proportions. Practice makes word problems easier!

.03*x+.05*(6000-x)=220
 
Dr. Lady said:
There's a much easier way to do it with one equation and no proportions. Practice makes word problems easier!

.03*x+.05*(6000-x)=220

Actually that looks more complicated to me. My way was right too though, right?
 
Sure... but you can't always rely on guess and check. In this problem we see that there's a principal, a rate, and an interest. We need a problem that accomadates them and only them, and we happen to have P*r=I, which we just need to modify for our uses. Word problems are almost always best thought of as what variables you have and need, and then what equation you already know that relates them.
 

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