Question #269697

sam began the week with a bag of buttons. at the end of the week he had used 2/3 of the buttons, and had 20 left how many did he start with at the beginning of the week


1
Expert's answer
2021-11-22T15:53:21-0500

20 is (12/3)=1/3(1 - 2/3) = 1/3 of all the buttons.

So, Sam started with 20:(1/3)=6020:(1/3) = 60 buttons.


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