OpenStax, Elementary Algebra 2e §8.9 Use Direct and Inverse Variation · Exercise 29 · Algebra · Rational expressions
Use Direct and Inverse Variation · Exercise 29
Write an inverse variation equation to solve the following problems.
On a string instrument, the length of a string varies inversely as the frequency of its vibrations. An 11-inch string on a violin has a frequency of 400 cycles per second.
ⓐ Write the equation that relates the string length to its frequency.
ⓑ What is the frequency of a 10-inch string?
OpenStax, Elementary Algebra 2e · §8.9 Use Direct and Inverse Variation · Exercise 29
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