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myrzilka [38]
3 years ago
12

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 mode
by the equation below where, P = the price of the book, 20 is the printing charge, 0.5 is the charge per page, and 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?
Mathematics
1 answer:
ivanzaharov [21]3 years ago
6 0

Answer:

68

Step-by-step explanation:

Alright, so to find how many pages that can be had, we have to replace P with the amount of money Jennifer has. This is because P is the price of one book, and we want to find the number of pages (x) we can buy for a book price of 62.10 or less.

62.1 = (20 + 0.5x) + 0.15(20 + 0.5x)

62.1 = 20 + 3 + 0.5x + 0.075x

62.1 - 23 = 0.575x

39.1 = 0.575x

39.1/0.575 = x

x = 68

Therefore, in order to buy a book that costs 62.10, the book must have 68 pages.

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Step-by-step explanation:

Another complex expression, let's simplify it step by step...

We'll start by re-writing 256 as 4^4

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Now, we have x^10, so if we divide the exponent by the root factor, we get 10/3 = 3 1/3, which means we will extract x^9 that will become x^3 outside and x will remain inside.

4 \sqrt[3]{4 x^{10} y^{7} } = 4x^{3} \sqrt[3]{4 x y^{7} }

For the y's we have y^7 inside the cubic root, that means the true exponent is y^(7/3)... so we can extract y^2 and 1 y will remain inside.

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A similar problem is given at brainly.com/question/24855677

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