Posted by Llolah` on Monday, January 3, 2011 at 6:11pm.
Tammy bought 16 cookies for a party. She had 6 6 cookies decorated at an extra cost of 25 cents each. If the total cost of the cookies $9.50, how much did each plan cookie cost?

Math  Llolah`, Monday, January 3, 2011 at 6:15pm
Sorry it was a mistake... It was only 6 cookies (typo_not 66)

Math  Reiny, Monday, January 3, 2011 at 6:22pm
basic cost of cookie = x
fancy cookie = x+25
so 10x + 6(x+25) = 950

Math  Llolah`, Monday, January 3, 2011 at 6:40pm
So that's how much each plain cookie cost?

Math  Reiny, Monday, January 3, 2011 at 7:57pm
I defined x to be cost of a basic cookie, so whatever you got for x in solving the equation is the cost of the cookie.
I hope you got 50 cents.
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