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4 September, 14:00

Johnny and Mona work in a bakery.

Johnny sells 14 boxes of almond cookies. Each box has the same number of cookies. Let a represent the number of almond cookies in a box.

Mona sells 28 boxes of chocolate cookies. Each box has the same number of cookies. Let b represent the number of chocolate cookies in a box.

Johnny writes 14a+28b as an expression to show the total number of cookies that he and Mona sold.

Which of the following expressions is equivalent to Johnny's expression?

14 (a+b)

14 (a+2b)

14a + (2b)

28 (a+b)

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Answers (1)
  1. 4 September, 15:31
    0
    its b. if you do the equation, 14 (a+2b), you will find that a becomes 14a and 2b becomes 28b. this can then be simplified as 14a+28b. its the same.
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