SOLUTION: After spending 5/8 of her money on marketing a lady has $ 10.50 left. How much had she at first?

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Question 205697: After spending 5/8 of her money on marketing a lady has $ 10.50 left. How much had she at first?
Answer by rfer(16322) About Me  (Show Source):
You can put this solution on YOUR website!
(10.50/1)/(5/8)=
(10.50/1)(8/5)=
84/5=$16.80