Stamp Problem
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Lesson Summary:
In this lesson, we learn how to solve a stamp problem using a chart and variables. The problem involves 3-cent stamps and 29-cent stamps that add up to a dollar 54, and we have to find the number of 29-cent stamps. By using variables for the number of each stamp and their values, and setting up an equation with the total value of the stamps, we can solve for the number of 29-cent stamps. The answer is 5, and we verify that it adds up correctly to the total value of the stamps.
Lesson Description:
Shows how to solve a word problem having to do with different stamps and their values. This is solved with one variable, but more than one stamp is defined. It is done with a chart.
More free YouTube videos by Julie Harland are organized at http://yourmathgal.com
Questions answered by this video:
- How do you write an equation for and solve a stamp problem in Algebra?
- If Jerry has some 3-cent stamps and 29-cent stamps worth $1.54, and the number of 29-cent stamps is four less than three times the number of 3-cent stamps, how many 29-cent stamps does he have?
- How do you solve 3x + 29(3x - 4) = 154?
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Staff Review
This stamp problem is very similar to the coin word problems in Algebra. The way that is shown to solve this problem is using a chart, and using the clues in the problem and the chart to write and solve an Algebraic equation. Finally, the solution is checked. All steps are shown in this stamp problem.
