Warm ups Find the LCM: Simplify:. Work Problems (Day 2) Objective: To solve work problems involving rational expressions (individual time). Standard 5.0.

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Presentation transcript:

Warm ups Find the LCM: Simplify:

Work Problems (Day 2) Objective: To solve work problems involving rational expressions (individual time). Standard 5.0

Use this formula:

Example 1 Working together, Eugene and Emily can pick forty bushels of apples in 7 hours. Had she done it alone it would have taken Emily 15 hours. Find how long it would take Eugene to do it alone.

Example 2 Working together, Erica and Tracy can tar a roof in 5 hours. Had she done it alone, it would have taken Erica 11 hours. How long would it take Tracy to do it alone?

Example 3 Hannah can mop a warehouse in 8 hours. One day her friend Cailey helped her and it only took 4.8 hours. How long would it take Cailey to do the job alone?

Example 4 Working together, Serene and Summer can plant flowers in 6 minutes. Had she done it alone it would have taken Summer 10 minutes. Find how long it would take Serene to do it alone?

Homework Worksheet: ▫More Work Problems