Asked by Emma
                Mary spent 3/7 of her money on a bag. The difference between the amount spent and not used was 12 dollars. How much did Mary spent on the bag?
            
            
        Answers
                    Answered by
            anon
            
    she spent 36 dollars on the bag!
Let's say that x represents the total amount of money she has.
12 (difference) = 4/7x (not used) - 3/7x (the money spent on the bag)
12 = 1/7x
x = 84 <-- This is the total amount of money she had
Since she only spent 3/7 of her total amount, and 3/7 x 84 is 36, she spent 36 dollars on the bag. This works out because the other 4/7 of the money not spent is 48 dollars, and the difference between 48 and 36 is 12.
    
Let's say that x represents the total amount of money she has.
12 (difference) = 4/7x (not used) - 3/7x (the money spent on the bag)
12 = 1/7x
x = 84 <-- This is the total amount of money she had
Since she only spent 3/7 of her total amount, and 3/7 x 84 is 36, she spent 36 dollars on the bag. This works out because the other 4/7 of the money not spent is 48 dollars, and the difference between 48 and 36 is 12.
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