Chapter-02


 * **Term** || **Lesson** || **Definition** ||
 * **Dimensional Analysis** || 2-8 || the process of carrying units throughout a computation ||
 * **Equivalent Equations** || 2-2 || Each step in solving an equation results the same solution. ||
 * **Formula** || 2-1 || A rule for a relationship between two certain numbers. ||
 * **Identity** || 2-4 || A true equation is no value of the variable Some equations are true ||
 * **Multi-Step Equation** || 2-3 || A math equation that takes more than one step ||
 * **Percent of Change** || 2-7 || the ratio of change in an amount to the original amount in percent ||
 * **Proportion** || 2-6 || An equation stating two ratios are equal. ||
 * **Rate** || 2-6 || a ratio of two measurements having different units of measure. ||
 * **Ratio** || 2-6 || comparison of two numbers by division ||
 * **Scale Model** || 2-6 || three dimensional reproduction of an item that has been reduced or increased in size proportionally ||
 * **Solve an Equation** || 2-2 || Find the value of the variable in the math equation. ||
 * **Unit Rate** || 2-6 || a rate that tells how many of one item is being compared to 1 of another item ||
 * **Weighted Average** || 2-9 || sum of the product of the number of units and value per unit divided by the sum of the number of units ||