SOLUTION: Janet goes shopping. In the first store, she spends three fourths of her money. In the next store, she spends two thirds of what is left. She then has $13. How much did she have b

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Question 670008: Janet goes shopping. In the first store, she spends three fourths of her money. In the next store, she spends two thirds of what is left. She then has $13. How much did she have before she went shopping?
Answer by ankor@dixie-net.com(22740) About Me  (Show Source):
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Janet goes shopping. In the first store, she spends three fourths of her money.
In the next store, she spends two thirds of what is left.
She then has $13. How much did she have before she went shopping?
:
Let x = the original amt
:
x - 3%2F4x = 1%2F4x, amt when she enters the 2nd store
then
1%2F4x - %282%2F3%29%281%2F4%29x = 13
1%2F4x - 2%2F12x = 13
Find the common denominator
3%2F12x - 2%2F12x = 13
1%2F12x = 13
x = 12 * 13
x = $156 original amt