The manufacturing cost of a smartphone is approximated by M(r, y) = 45x + 40y - 20ry+ 50 where x is the cost of the parts and y is the cost of the labor. Right now, the company spends $9 on parts and $15 on labor. Use differentials to approximate the change in cost if the company decreases the cost of parts by $0.13 and increases the cost of labor by $0.23. Round your answer to two decimal places.

The manufacturing cost of a smartphone is approximated by M(r, y) = 45x + 40y - 20ry+ 50 where x is the cost of the parts and y is the cost of the labor. Right now, the company spends $9 on parts and $15 on labor. Use differentials to approximate the change in cost if the company decreases the cost of parts by $0.13 and increases the cost of labor by $0.23. Round your answer to two decimal places.

College Algebra (MindTap Course List)

12th Edition

ISBN:9781305652231

Author:R. David Gustafson, Jeff Hughes

Publisher:R. David Gustafson, Jeff Hughes

Chapter2: Functions And Graphs

Section2.6: Proportion And Variation

Problem 17E: Find the constant of proportionality. y is directly proportional to x. If x=30, then y=15.

See similar textbooks