Q:

Cookies are on sale! Today each cookie costs $0.75 less than the normal price. Right now if you buy 7 of them it will only cost you $2.80! Write an equation to determine the normal price of each cookie. Find the normal price of each cookie.

Accepted Solution

A:
Ok, let us use "C" as our variable that will equal the normal price.

   (C - $.75) 7 = $2.80

Divide both sides of equation by 7
C - $.75 = $2.80 / 7 Add $.75 to both sides of equation

C = $.40 + $.75

C = $1.15