I remember doing this question. The question went like: <span>1.25x + 1.49 = 100 What error did Barbara make in writing the equation? And the answer would be that Barbaras equation did not consider the number of ice tea drinks. Hence, </span>She put the correct price in the equation but she didn't put the (x) number of iced tea drinks. In other words,This is because she has added 1.25 X the number of water bottles sold to 1.49, the cost of one iced tea. So, the correct equation would be: 1.25x +1.49y = 100 Would really appreciate if you would put me as Brainliest answer.