Answer to Question #269697 in Algebra for jess

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

Expert's answer

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

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

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