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Return to book index Chapter 1 : Connections to Algebra
1.5 Problem Solving Help

Help for Exercises 54-57 on page 37

Exercises 54-57 show how a problem can be solved by first solving a simpler problem. The first step in solving any problem is to determine what you are asked to find and what information you need to do so. Next, determine what information you are given and whether it is sufficient.

To begin Exercises 54-57, carefully read the problem and the verbal model. You are asked to find out how fast Jeff was driving. Notice that this is not one of the expressions in the verbal model. However, assigning labels to the given verbal model and solving the resulting algebraic model will allow you to find how many miles over the speed limit Jeff was driving. Since you also know the speed limit, you can determine how fast Jeff was driving.