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SureMath - the math software for 21st century problem solving - was used to solve this problem.
Problem solution
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Suppressing the words and details in the above presentation serves to show how much is lost by not including the verbal statements. The verbal statements are the thinking part of the the solution. If the verbal statements are suppressed the expert in the subject can still understand the solution. Those who are learning the subject cannot. Verbal statements are an essential part of problem solving.

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The problem solution was developed by Howard C. McAllister using SureMath.

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