What you’ll learn to do: Solve equations with decimals using properties of addition and subtraction
Kim and Alyssa are on the same high school swim team, and they’re always competing for the fastest time in the 50-meter freestyle event. In the last race, the difference between Kim’s time and Alyssa’s time was 1.36 seconds. If Alyssa swam the race in 36.79 seconds, what was Kim’s time? To solve this problem, you’ll need to translate the information given to an equation and then solve it. Read on to find out more about solving equations with decimals.
Before you get started, take this readiness quiz.
readiness quiz
1)
If you missed this problem, review the example below.
Evaluate [latex]y-\Large\frac{5}{6}[/latex] when [latex]y=-\Large\frac{2}{3}[/latex]
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2)
If you missed this problem, review the following example.
Evaluate [latex]20-z\text{ when}[/latex]
- [latex]z=12[/latex]
- [latex]z=-12[/latex]
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3)
If you missed this problem, review this video.
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Candela Citations
CC licensed content, Original
- Solving One Step Equations Using Multiplication and Division (Basic). Authored by: James Sousa (Mathispower4u.com) for Lumen Learning. Located at: https://youtu.be/BN7iVWWl2y0. License: Public Domain: No Known Copyright
CC licensed content, Shared previously
- Freestyle swimmer . Authored by: Mark Bonica. Located at: https://www.flickr.com/photos/23119666@N03/7447357796/. License: CC BY: Attribution
- Question ID: 145205, 146320, 146336. Authored by: Lumen Learning. License: CC BY: Attribution. License Terms: IMathAS Community License CC-BY + GPL
CC licensed content, Specific attribution
- Prealgebra. Provided by: OpenStax. License: CC BY: Attribution. License Terms: Download for free at http://cnx.org/contents/caa57dab-41c7-455e-bd6f-f443cda5519c@9.757