The number x of printer cartridges that a store will sell per week and their price p (in dollars) are related by the equation x² = 3625 – 5p² . If the price is falling at the rate of $2 per week, what is the rate of change of sales if the current price is $15?

The number x of printer cartridges that a store will sell per week and their price p (in dollars) are related by the equation x² = 3625 – 5p² . If the price is falling at the rate of $2 per week, what is the rate of change of sales if the current price is $15?

Elementary Algebra

17th Edition

ISBN:9780998625713

Author:Lynn Marecek, MaryAnne Anthony-Smith

Publisher:Lynn Marecek, MaryAnne Anthony-Smith

Chapter8: Rational Expressions And Equations

Section8.9: Use Direct And Inverse Variation

Problem 8.181TI: A car’s value varies inversely with its age. Elena bought a two-year-old car for $20,000. a. Write...

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Need help with last question. Thank u

The number x of printer cartridges that a
store will sell per week and their price p
(in dollars) are related by the equation
x²
= 3625 – 5p
If the price is falling at the rate of $2
per week, what is the rate of change of
sales if the current price is $15?

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