Algebraic Expressions & Equations

Prepare a Presentation

Work Time

Prepare a Presentation

Explain your solutions for the weight in kilograms and in pounds. Use your work to support your explanation.

Challenge Problem

To estimate your weight in kilograms, divide your weight in pounds by 2 and then subtract 10% of that number from the result.

Let p = weight in pounds. Let k = weight in kilograms.

  • Write an equation for the relationship between k and p.
  • Now draw a graph to show the relationship between k and p. Let p be the independent variable.
  • Use the graph to find the weight in kilograms of a person who weighs 115 lb and the weight in pounds of a person who weighs 49.5 kg.