
Concept explainers
To write: Andsimplify an expression in terms of

Answer to Problem 31E
The equation is
Explanation of Solution
Given:
S = Time in minutes spent in swimming.
Calculation:
Use the variable
The time spent will be substituted in for
8 calories are burnt per minute when swimming.
The problem states that for every minute swimming, 8 calories are burnt
Multiply 8 and the variable
This will give the final equation that will be used to solve when you substitute a number in for
Therefore,
The equation is
Hence, the equation is
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