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Unit Expressions and Equations

Unit Expressions and Equations. Topic Equation Word Problems. Equation Word Problems. What am I learning today? Equations What will I do to show that I learned it? Write and solve equations from word problems in the form px + q = r. Equation Word Problems.

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Unit Expressions and Equations

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  1. UnitExpressions and Equations TopicEquation Word Problems

  2. Equation Word Problems What am I learning today? Equations What will I do to show that I learned it? Write and solve equations from word problems in the form px + q = r

  3. Equation Word Problems To Write and Solve Equations: 1. Define the variable. - What do you need to find? What variable will represent that value. 2. Write an equation. 3. Solve the equation. 4. Interpret the solution. - Write a sentence explaining what your answer represents.

  4. Equation Word Problems QUESTION How are equations written and solved from a word problem?

  5. Equation Word Problems One-Step Example

  6. Equation Word Problems Miss Isaacs’s math class raised $523 to buy hola hoops. Joey raised $201, how much did the rest of the class earn? Define the variable: c = amount the rest of the class earned Write an equation: c + 201 = 523

  7. Equation Word Problems Solve the equation: c + 201 = 523 -201 -201 c = 322 Interpret the solution: The rest of the class earned $322.

  8. Equation Word Problems Two-Step Example

  9. Equation Word Problems A long distance phone company charges $1.01 to make a phone call and charges $0.09 for each minute. A call cost $9.56. How many minutes did it last? Define the variable: m = minutes Write an equation: 0.09m + 1.01 = 9.56

  10. Equation Word Problems Solve the equation: 0.09m + 1.01 = 9.56 -1.01 -1.01 0.09m = 8.55 0.09 0.09 m = 95 Interpret the solution: The call lasted 95 minutes

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