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Home > MC2 > Chapter 6 > Lesson 6.2.2 > Problem 6-90


When Lakeesha solved the equation from problem 6-89, she reasoned this way:
"Since groups of equals groups of , then I know that each group of must equal ."

  1. Do you agree with her reasoning? Explain.

    Recall the Equation Mat from problem 6-89.
    Each group of corresponds to each group of .

  2. How can the result of Lakeesha's reasoning be written?

  3. Verify that your answer from problem 6-89 will make the equation you wrote in part (b) true.

    Substitute your answer from problem 6-89 into the equation above and see if the equation is true.