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N granola bars cost 84 cents. At this price, 21 granola bars would cost a) $17.64 b) 4N c) $17.64/N?
2 Answers
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- ?Lv 74 years ago
21 granola bars × (84 cents)/(n granola bars) = 21×84/n cents
= 1764/n cents
= 17.64/n dollars
- JimLv 74 years ago
21 bars ($.84/n) = $17.64/n
this is simply a usage of Unit Cancellation.
c)
Source(s): Here's a short video on Unit Cancellations. It's well worth the time to take 5 minutes and learn the technique! You'll use it you're whole life. https://www.youtube.com/watch?v=8jB-LaTGgq8
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