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How is the concept of mixed numbers applied to the real world?
Find the sum of two mixed numbers by applying the procedure for adding mixed numbers, Solve a real-world problem by subtracting mixed numbers.
Can real-world problems have more than one answer?
Real world problems typically have several answers. Since the real world is very complicated and messy, we seldom can be sure that we have the perfect answer to any real world problem, so we have to make do with the best answer we can come up with, and there are generally several possible answers to choose from. And it is only after we use such an answer that we will discover how good (or how bad) an answer it was.
When a solution set to a real world problem involving polynomials contains both positive and negative solutions why are the negative solutions often discarded?
The negative solutions are often discard because they have no real meaning in the real world, for example, you can not have -6 apples, it just doesn't make sense.
Do the values for the slope x- and y-intercepts seem reasonable and realistic in the context of this problem?
Very much so. The result is gratifying in its obvious reflection of the real world situation embodied in the problem.
What is a real world problem that can be solved by writing an equation the answer must be 6?
If you had 2 apples and I gave you 4 apples what would be the number of apples you then had.
