Monthly Archives: October 2009

Algebra: Chapter 3-9, page 148. Proportions A ratio of 2 quantities is a comparison, often expressed as a fraction. An equation that states that 2 ratios are equal is called a proportion. I prefer to just criss-cross, or cross multiply … Continue reading →

Algebra: Chapter 3-8, page 145. Solving Equations Involving Absolute Value The absolute value of a number, `|x|` is its distance from zero on the number line. Remember that the absolute value is always positive. Treat absolute value equations just like … Continue reading →

Algebra: Chapter 3-7, page 142. Formulas Formulas that use more than 1 letter are often called literal equation. Use the formula and solve for the desired variable by treating all other variables as if they are constants or coefficients. Constants … Continue reading →

Algebra: Chapter 3-5 and 3-6, pages 136 and 139. More on Solving Equations (3-5) Clearing an Equation of Fractions or Decimals (3-6) See yesterday’s notes for Algebra ¦ ¤ ¦¦ ¤ ¦¦ ¤ ¦¦ ¤ ¦¦ ¤ ¦¦ ¤ ¦¦ … Continue reading →

Algebra: Chapter 3-5 and 3-6, pages 136 and 139. More on Solving Equations (3-5) Solve equations by first getting all variables on the same side of the equation. Get rid of the paranthesis too (distributive property if required). Go slow … Continue reading →

Algebra: Chapter 3-3 and 3-4, pages 125 and 130 Using the Properties Together You can solve these equations in a variety of ways. Remember the objective is to ISOLATE the variable on one side. You can add, subtract, multiply or … Continue reading →

Algebra: Chapter 3-2, pages 119. The Multiplication Properties of Equality (I call these 1 STEP EQUATIONS) You can add, subtract, multiply or divide the same number to both sides of an equation and get an equivalent equation. We call these … Continue reading →

Algebra: Chapter 3-1 and 3-2, pages 114 and 119. The Addition and Multiplication Properties of Equality (I call these 1 STEP EQUATIONS) You can add, subtract, multiply or divide the same number to both sides of an equation and get … Continue reading →

Schedule Change for all students TODAY! We resume our regular Algebra and Algebra 1a programming on Monday, October 5, 2009

Algebra: Chapter 3 Lesson 2, page 119. The Multiplication Properties of Equality (I call these 1 STEP EQUATIONS) See yesterday’s Algebra notes for Day 26. Algebra 1a: Chapter 2, Lesson 4, page 71. Subtraction of Rational Numbers Today, we are … Continue reading →