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xenn [34]
3 years ago
6

As the number of pages in a photo book increases, the price of the book also increases. There is an additional shipping charge o

f 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
Mathematics
2 answers:
miv72 [106K]3 years ago
6 0

Answer:

The maximum number of pages she can have in her book is 68 pages

Step-by-step explanation:

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.

we will put P = 62.10

62.10 = (20+0.5x)+0.15(20+0.5x)

Solving this;

62.10 =20+0.5x+3+0.075x

=> 62.10 =23+0.575x

=> 62.10-23=0.575x

=> 39.1=0.575x

x = 68

Hence, the maximum number of pages she can have in her book is 68 pages.

UNO [17]3 years ago
5 0

You can just substitute $62.10 to the model of the price

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

68.10 = (20 +0.5x) + 0.15(20+0.5x)

 

x = 68 pages

 

therefore the maximum number of pages she can have in her book is 68 pages

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