SOLUTION: Hi If there is a 10% discount on a pair of jeans Bob can buy 10 pairs with his monthly salary. How many jeans can he buy with his salary if there is a 50% discount. Thanks

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Question 1189094: Hi
If there is a 10% discount on a pair of jeans Bob can buy 10 pairs with his monthly salary. How many jeans can he buy with his salary if there is a 50% discount.
Thanks
Answer by josgarithmetic(39618) About Me  (Show Source):
You can put this solution on YOUR website!
w, Bob's monthly salary
p, price of pair of jeans


(1)
0.9p%2A10=w

(2)
x, how many pair of jeans
0.5p%2Ax=w


Using (1) and (2) to find x, for the question:
0.9p%2A10=0.5px
x=%280.9%2A10%29%2F%280.5%29
x=%289%2F5%2910
highlight%28x=18%29