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January 30, 2015

January 30, 2015

Posted by **Erica** on Monday, December 6, 2010 at 3:33am.

a) Verify that the total cost is y=1.25x + 1.60(50 - x), where x is the number of pounds of the less expensive commodity.

b) Find the inverse function of the cost function.

- Calc -
**drwls**, Monday, December 6, 2010 at 6:49ama) The y(x) expression is obviously correct. The first term is the amount spent on the least expensive commodity and the second is the amount spend on the more expensive commodity.

b) Solve for x in terms of y.

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