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LESSON

Solving

Word Problems

Using Formulas

In mathematics and science, many problems can be solved by using a

formula. Aformulais a mathematical statement of the relationship of two or

more variables. For example, the distance (D) an automobile travels is related

to the rate (R) of speed and the time (T) it travels. In symbols,D¼RT.

In order to evaluate formulas, you use the order of operations.

Step 1: Perform all operations in parentheses.

Step 2: Raise each number to its power.

Step 3: Perform multiplication and division from left to right.

Step 4: Perform addition and subtraction from left to right.

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