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 drinks she needs to sell to earn $100.
1.25x + 1.49 = 100
What error did Barbara make in writing the equation?
Barbra didn't use a variable with the number 1.49. Why is that a mistake, because she wants to know how much of each she needs to sell, not just one. With the variable you can just plug it number, to then reach the goal, 100$. Hope this helped.
