Asked by Anonymous
Gigi wants to sell 18 kilograms of a cookie mix for $7 a kilogram. She starts with a $5 cookie mix and a $10 cookie mix. How many kilograms of each does she need to make the final mix?
Answers
Answered by
Reiny
amount of cheaper mix --- x kg
amount of expensive mix -- 18-x
solve for x and sub into my definitions
5x + 10(18-x) = 7(18)
amount of expensive mix -- 18-x
solve for x and sub into my definitions
5x + 10(18-x) = 7(18)
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