different steps to solve real life problems including rational functions, equations and inequalities
Answers
Rational formulas
Rational formulas can be useful tools for representing real-life situations and for finding answers to real problems. Equations representing direct, inverse, and joint variation are examples of rational formulas that can model many real-life situations. As you will see, if you can find a formula, you can usually make sense of a situation.
When solving problems using rational formulas, it is often helpful to first solve the formula for the specified variable. For example, work problems ask you to calculate how long it will take different people working at different speeds to finish a task. The algebraic models of such situations often involve rational equations derived from the work formula,
W
=
r
t
. The amount of work done (W) is the product of the rate of work (r) and the time spent working (t). Using algebra, you can write the work formula
3
ways:
- We know that there are different steps to solve real-life problems.
- The first step is to identify and define the problem.
- Then we can generate a solution.
- After that, the next step is to evaluate alternatives. decide on a solution to the problem.
- Then we can implement the solution and evaluate the outcoming solution.