OpenStax, Elementary Algebra 2e §8.9 Use Direct and Inverse Variation · Exercise 9 · Algebra · Rational expressions
Use Direct and Inverse Variation · Exercise 9
Solve.
The amount of money Sally earns, P, varies directly with the number, n, of necklaces she sells. When Sally sells 15 necklaces she earns $150.
ⓐ Write the equation that relates P and n.
ⓑ How much money would she earn if she sold 4 necklaces?
OpenStax, Elementary Algebra 2e · §8.9 Use Direct and Inverse Variation · Exercise 9
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