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Why does the number of slices present before bob came divided by 3/4 equal the total number of slices in the pizza?

Module 1 Day 2 Your Turn Part 1
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  • D
    debbie ADMIN M0★ M1 M5
    last edited by debbie Apr 27, 2020, 6:15 PM Feb 13, 2020, 6:23 PM

    This post is deleted!
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    • D
      debbie ADMIN M0★ M1 M5
      last edited by Feb 16, 2020, 8:23 PM

      [Originally posted in Discussions]

      Why does the number of slices present before bob came divided by 3/4 (how much of the pizza it was) the total number of slices in the pizza? How does that work? Shouldn't you do some more? I don't get it.

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      • D
        debbie ADMIN M0★ M1 M5
        last edited by Feb 16, 2020, 8:27 PM

        This is because
        7bfd5e77-5ad8-4253-8efa-ea1545eb4017-image.png

        and we found that there were 9 slices before Bob ate (based on working backwards from the 3 slices at the end).

        ed2b0b16-5b29-409d-8372-6f291538f624-image.png

        To find the number of slices in the original pizza, divide both sides by 3/4:

        bc811ac4-4960-42e2-b8f4-f43217eb9046-image.png

        Let me know if you have any more questions!

        Happy Learning!

        The Daily Challenge Team

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        • D
          debbie ADMIN M0★ M1 M5
          last edited by Feb 16, 2020, 8:27 PM

          [Originally posted in Discussions]

          But why do you divide?

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          • D
            debbie ADMIN M0★ M1 M5
            last edited by Feb 16, 2020, 8:28 PM

            You divide because in the original equation in my prior post, the "number of slices in the whole pizza" is multiplied by 3/4:

            9e062b9d-5607-4fef-a4b2-fb5ea787d8cb-image.png

            We want to solve for the number of slices in the whole pizza, so we want to get the "whole pizza" by itself. That is why we divide by 3/4.

            I hope this helps!

            Happy Learning,

            The Daily Challenge Team

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