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Home > AC > Chapter 9 > Lesson 9.1.2 > Problem 9-20

9-20.

Use a generic rectangle to multiply .

Multiply each column value by each row value to fill the rectangle.

  1. What is ? How do you know?

    is the same as .

    The product divided by one factor is the other factor.

  2. Likewise, determine .

  • See part (a).