Math8 - q1 - Mod5c - Solving Problems Involving Rational Algebraic Expressions - 08092020
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Rational Equation Word Problem Lesson
- Demonstrate an understanding of the six-step method to solve a word problem
- Demonstrate an understanding of how to solve a rational equation
- Learn how to solve a work rate word problem
- Learn how to solve a motion word problem with rational expressions
Applications of Rational Expressions
Six-step method for applications of rational expressions.
- Read the problem carefully and determine what you are asked to find
- Assign a variable to represent the unknown
- Write out an equation that describes the given situation
- Solve the equation
- State the answer using a nice clear sentence
- Check the result by reading back through the problem
Work Rate Word Problems
Motion word problems with rational expressions, skills check:.
Solve each word problem.
Bryan, a high school janitor can wax the floor in 4 hours. His assistant, Larry, would take 6 hours to perform the same job. How long would it take them to wax the floor if they work together?
Please choose the best answer.
A large auger can fill a grain bin in 5 hours less time than a smaller auger. Together they fill the bin in 6 hours. How long would it take the larger auger, by itself, to fill the bin?
An airplane moving at a constant airspeed takes as long to go 450 miles with the wind as it does to go 375 miles against the wind. Find the speed of the plane in still air if the wind speed is 15 miles per hour.
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