As the number of pages in a photo book increases, the price of the book also increases. There is an additional shipping charge of 15%. The price of a book can be modeled by the equation below where, P = the price of the book, 20 is the printing charge, 0.5 is the charge per page, and x = the number of pages.

P = (20 + 0.5x) + 0.15(20 + 0.5x)

Jennifer wants to purchase a book but only has $62.10 to spend. What is the maximum number of pages she can have in her book?

x = ______________________ pages

Question

As the number of pages in a photo book increases, the price of the book also increases. There is an additional shipping charge of 15%. The price of a book can be modeled by the equation below where, P = the price of the book, 20 is the printing charge, 0.5 is the charge per page, and x = the number of pages.

P = (20 + 0.5x) + 0.15(20 + 0.5x)

Jennifer wants to purchase a book but only has $62.10 to spend. What is the maximum number of pages she can have in her book?

x = ______________________ pages

anonymous · Answer

62.10 = 20 + 0.5x + 0.15(20) + 0.15(0.5x)
62.10 = 20 + 0.5x + 3 + 0.075x
62.10 = (0.5x + 0.075x) + (20 + 3)
62.10 = 0.575x + 23
62.10 - 23 = 0.575x + 23 - 23
39.10 = 0.575x (divide both sides by 0.575) 

whats he answer?

anonymous · Answer

im still lost on it

anonymous · Answer

nvm i divided wrong thank you so much for the help!

anonymous · Answer

Your welcome :)