Introduction to Using Formulas to Solve Word Problems
If you've ever taken a science class, you're probably familiar with at least a few scientific formulas. While you might not have realized it, scientific formulas are an application of algebra. Algebra is used in almost every scientific formula such as the formula for pressure relationships, PV=nRT, and the formula for finding the density of a material, Density = Mass/Volume. We use algebra to rearrange scientific formulas and solve for one specific variable. You'll learn more about formulas and how to solve them in this section.Learning Outcomes
By the end of this section, you will be able to:- Use the distance, rate, and time formula
- Solve a formula for a specific variable
Readiness quiz
1)
If you missed this problem, review this video about solving equations that require more than one step. https://youtu.be/HyUiYeLee3g 3) If you missed this problem, review this video about simple interest. https://youtu.be/iVmetUlbheYLicenses & Attributions
CC licensed content, Original
- Determine the Amount of Interest Earned (Simple Interest). Authored by: James Sousa (Mathispower4u.com) for Lumen Learning. License: CC BY: Attribution.
- Question ID 140303, 140300, 88804. Authored by: Lumen Learning. License: CC BY: Attribution. License terms: IMathAS Community License, CC-BY + GPL.
CC licensed content, Shared previously
- Rates and Unit Rates. Authored by: James Sousa (Mathispower4u.com). License: CC BY: Attribution.
- Ex 1: Solving Two-Step Equations Using Integers. Authored by: James Sousa (Mathispower4u.com). License: CC BY: Attribution.
- Formula. Authored by: Markus Spiske. License: CC BY: Attribution.
CC licensed content, Specific attribution
- Prealgebra. Provided by: OpenStax License: CC BY: Attribution. License terms: Download for free at http://cnx.org/contents/[email protected].