The last step mentioned in building equations to solve real-world problems is to check your answer by substituting it into the original equation. Another way to check your answer is to use estimation and to make sure the answer is reasonable for the situation. In the problem above, are all of the solutions reasonable for the given situation? Why or why not?

The last step mentioned in building equations to solve realworld problems is to check your answer by substituting it into the original equation Another way to c class=