Chapter 2: Problem 47
In your own words, describe a step-by-step approach for solving algebraic word problems.
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Chapter 2: Problem 47
In your own words, describe a step-by-step approach for solving algebraic word problems.
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In an inequality such as \(5 x+4<8 x-5,\) I can avoid division by a negative number depending on which side I collect the variable terms and on which side I collect the constant terms.
Membership in a fitness club costs \(\$ 500\) yearly plus \(\$ 1\) per hour spent working out. A competing club charges \(\$ 440\) yearly plus \(\$ 1.75\) per hour for use of their equipment. How many hours must a person work out yearly to make membership in the first club cheaper than membership in the second club?
Determine whether each statement "makes sense" or "does not make sense" and explain your reasoning. I can check inequalities by substituting 0 for the variable: When 0 belongs to the solution set, I should obtain a true statement, and when 0 does not belong to the solution set, I should obtain a false statement.
What happens to the volume of a sphere if its radius is doubled?
When solving an inequality, when is it necessary to change the direction of the inequality symbol? Give an example.
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