The profit (SP) of selling a mobile phone is partly constant and partly varies directly as the number of phones (n) sold. When 20 phones were sold, the profit will be $3,000. When 25 phones were sold, the profit will be $5,400. (a) Express P in terms of n. (b) Find the profit when 40 phones were sold. (c) Find number of phones were sold if the targets profit is $23,640?
The profit (SP) of selling a mobile phone is partly constant and partly varies directly as the number of phones (n) sold. When 20 phones were sold, the profit will be $3,000. When 25 phones were sold, the profit will be $5,400. (a) Express P in terms of n. (b) Find the profit when 40 phones were sold. (c) Find number of phones were sold if the targets profit is $23,640?
Algebra for College Students
10th Edition
ISBN:9781285195780
Author:Jerome E. Kaufmann, Karen L. Schwitters
Publisher:Jerome E. Kaufmann, Karen L. Schwitters
Chapter8: Functions
Section8.7: Direct And Inverse Variation
Problem 36PS
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![The profit (SP) of selling a mobile phone is partly constant and partly varies directly as the
number of phones (n) sold. When 20 phones were sold, the profit will be $3,000. When 25
phones were sold, the profit will be $5,400.
(a) Express P in terms of n.
(b) Find the profit when 40 phones were sold.
(c) Find number of phones were sold if the targets profit is $23,640?](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F7852ed1a-e49b-4228-bc7d-446088f184cb%2F1cb14c1c-1933-473d-9ab5-c41af454959e%2F8decnjm_processed.jpeg&w=3840&q=75)
Transcribed Image Text:The profit (SP) of selling a mobile phone is partly constant and partly varies directly as the
number of phones (n) sold. When 20 phones were sold, the profit will be $3,000. When 25
phones were sold, the profit will be $5,400.
(a) Express P in terms of n.
(b) Find the profit when 40 phones were sold.
(c) Find number of phones were sold if the targets profit is $23,640?
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