Barbara sells iced tea for $⁢1.49 per bottle and water for $⁢1.25 per bottle. She wrote an equation to find the number of bottles she needs to sell to earn $⁢100. 1 point 2 5 x plus 1 point 4 9 is equal to 100 What error did Barbara make in writing the equation?

In Barbara’s equation, 1.25x counts the money from x bottles of water, but 1.49 is only the price of one bottle of iced tea. To include the sales from multiple bottles of iced tea, its price would also need to be multiplied by the number of iced tea bottles. So her equation did not consider the number of bottles of iced tea.

AI-written and checked against the verified answer.