Concept explainers
To find: The constant of variation for given relation and use it to write an equation for given statement. Then solve the equation.
If y varies inversely as x and y = 3 when x = 4, find y when x = 15.
Answer to Problem 5CFU
Explanation of Solution
Given information: If y varies inversely as x and y = 3 when x = 4, find y when x = 15.
Calculation:
Since y varies inversely as x, we get the relation:
Since y = 3 when x = 4, we get:
That is:
Thus:
When x = 15, we get:
That is:
Chapter 3 Solutions
Advanced Mathematical Concepts: Precalculus with Applications, Student Edition
Additional Math Textbook Solutions
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