SOLUTION: Mandy went shopping, she spent two fifth of her money in the first store. she spent three-fifths of what she had left in the next store. in the last store she visited, she spent th

Algebra ->  Polynomials-and-rational-expressions -> SOLUTION: Mandy went shopping, she spent two fifth of her money in the first store. she spent three-fifths of what she had left in the next store. in the last store she visited, she spent th      Log On


   



Question 833113: Mandy went shopping, she spent two fifth of her money in the first store. she spent three-fifths of what she had left in the next store. in the last store she visited, she spent three-fourths of the money she had left. when she finished shopping, Mandy had $6. how much money in dollars did Mandy have when she started shopping?
Answer by josgarithmetic(39616) About Me  (Show Source):
You can put this solution on YOUR website!
Many started with variable, d dollars.

Store 1---d-%282%2F5%29d;
Store 2---d-%283%2F5%29%28d-%282%2F5%29d%29;
Store 3---highlight%28d-%283%2F4%29%28d-%283%2F5%29%28d-%282%2F5%29d%29%29=6%29

Solve for d.
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d-%283%2F4%29%28d-%283%2F5%29%28d-%282%2F5%29d%29%29=6
d-%283%2F4%29%28d-%283%2F5%29%285d%2F5-%282%2F5%29d%29%29=6
d-%283%2F4%29%28d-%283%2F5%29%283d%2F5%29%29=6
d-%283%2F4%29%28d-9d%2F25%29=6
d-%283%2F4%29%2825d%2F25-9d%2F25%29=6
d-%283%2F4%29%2816d%2F25%29=6
d-48d%2F100=6
%28100d-48d%29%2F100=6
52d%2F100=6
d=6%28100%2F52%29
d=6%2825%2F13%29=150%2F13
highlight%28d=11.54%29