Math
posted by Llolah` .
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?

Sorry it was a mistake... It was only 6 cookies (typo_not 66)

basic cost of cookie = x
fancy cookie = x+25
so 10x + 6(x+25) = 950 
So that's how much each plain cookie cost?

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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I don't know how to make an equation for this?