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15-10-2017
Mathematics

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Lisa has a certain amount of money. She spent 39 dollars and has 3/4 of the original amount left. How do you write this equation?

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highwireact highwireact

15-10-2017

Let’s call the amount of money she started with “m”.

What this problem is saying is that “taking away 39 from m is equivalent to taking 3/4 of m.” What do “taking away 39 from,” “equivalent to,” and “3/4 of” translate to mathematically?

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