Using Equations


This chapter reviews a number of equation-solving skills from Pre-Algebra. Literal equations, ratios and proportions, and similar figures are all discussed. A variety of percent-related topics are also covered, including general percent equations, percent change, and money problems. The chapter concludes with applications of motion and mixture problems.

What you can expect to learn

After completing these exercises you should be able to

  1. Solve a literal equation for the indicated variable.
  2. Write ratios and unit rates, and be able to solve proportions.
  3. Answer questions relating to length in scale models and similar figures.
  4. Solve equations involving percents, and be able to solve related real-life applications.
  5. Answer questions involving percent change.
  6. Answer various questions involving percents and money.
  7. Solve motion problems and mixture problems.
Activity List