Overlooking your typos ....
14 c + 6 o = 160
12 c + 12 o = 192 ----> c + o = 16 or o = 16-c
plug into the first
14c + 6(16-c) = 160
solve for c, the sub into o = 16-c
Michael and Stephanie are selling cookies for a school fundraiser. Customers can by boxes of either chocolate chip or oatmeal cookies. Michael and 14 boxes of chocolate chip cookies and 6 boxes of oatmeal cookies for a total of $160. Stephanie sold 12 boxes of chocolate chip cookies and 12 boxes of oatmeal cookies for a total of $192. How much was each box of chocolate chip cookies and how much was each box of oatmeal cookies?
1 answer