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Intermediate Algebra

Linear Equations and Inequalities in One Variable

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Linear Equations

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Formulas

Problem 3

A boat is traveling upstream against a current. If the speed of the boat in still water is \(r\) and the speed of the current is \(c\) then the formula for the distance traveled by the boat is \(d=(r-c) \cdot t\) where \(t\) is time. Find \(c\) if \(d=52\) miles, \(r=16\) miles, and \(t=4\) hours.

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Applications

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Interval Notation and Linear Inequalities

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Sets and Compound Inequalities

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Absolute Value Equations

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Absolute Value Inequalities

Problem 8

**Mini Lecture**

Solve and graph.

\(|3y+9|\geq 6\)

\(|3x+5|-8<5\)

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