Solve each problem. See the strategy for problem solving.STRATEGY Problem Solving1. Read t...

Solve each problem. See the strategy for problem solving.

STRATEGY Problem Solving

1. Read the problem as many times as necessary to get an understanding of the problem.

2. If possible, draw a diagram to illustrate the problem.

3. Choose a variable, write down what it represents, and if possible, represent any other unknown quantities in terms of that variable.

4. Write an equation that models the situation. You may be able to use a known formula, or you may have to write an equation that models only that particular problem.

5. Solve the equation.

6. Check your answer by using it to solve the original problem (not just the equation).

7. Answer the question posed in the original problem.

Depth of a Swimming Pool A circular swimming pool with a diameter of 30 ft and a horizontal bottom contains 22,000 gal of water. What is the depth of the water in the pool? (One cu­bic foot contains approximately 7.5 gal of water.)

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