Intermediate Algebra Review Part 6
In this intermediate algebra review, the lesson focuses on understanding and solving problems using the rate times distance formula with an emphasis on finding the time. The specific problem being solved involves a boat traveling upstream and downstream with a given current speed. The transcript walks through step-by-step how to set up the problem and solve for the rate of the boat in still water. This lesson is a helpful review for anyone needing to brush up on their algebra skills.
Solutions to a Review for Midterm 1 in Intermediate Algebra--Rational Expressions, Equations, Proportions, Work Problems, Functions, Inequalities, Interval notation, Absolute Value Equations and Inequalities.
More free YouTube videos by Julie Harland are organized at http://yourmathgal.com
There is a series of 11 videos. Pdf of problems is at: https://sites.google.com/site/harlandclub/Home/math/algebra/intrevmt1
- How do you set up and solve an equation for an Algebra word problem involving a boat traveling in a stream with a current?
- If a boat travels 9 miles upstream in the same amount of time it takes to travel 11 miles downstream and the rate of the current is 3mph, what is the rate of the boat in still water?
- How can you use a table to set up a boat and stream current problem?
- How do you solve 9/(b - 3) = 11/(b + 3)?
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Staff Review
This lesson shows how to solve a current word problem that is very common in Algebra. You know the rate of a current and the distance the boat travels up stream and downstream, and you also know the time to travel those distances is the same. And you have to find the rate of the boat in still water. All steps involved with setting up and solving this problem are shown and explained. The fractions at the end should be flipped -- they should be 9/27 and 11/33.
