Concept explainers
To express: the age in terms of b and c .
Answer to Problem 17OE
The age of Bob is
Explanation of Solution
Given information:
Four years ago, Bob was one-third as old as Claire was.
Formula used:
Age problem.
Step1. The problem asks for the Bob’s age and Claire’s age now.
Step2. Let b = the Bob’s age now.
Let c = the Claire’s age now.
Step3. Use the facts of the problem to write two equations.
Step4. Solve the equations.
Calculation:
Consider ,
Let b = the Bob’s age now.
Let c = the Claire’s age now.
Age | Now | 4years ago |
Bob | ||
Claire |
According to the question,
The age of Bob is
Hence, the age of Bob is
Chapter 9 Solutions
Algebra: Structure And Method, Book 1
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