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stealth61 [152]
3 years ago
5

Hamid published a book of poems. He sold 35 copies in the first week for $10 per copy. He wanted to increase the price of

Mathematics
2 answers:
Natalija [7]3 years ago
6 0

After reading through the story problem, I ended up with this equation:

(35-2)(x+.5) =?

or

(35-2)(10+.5)=?

Explanation:

He sells 35 books for usual weeks. Since he is selling his books at $.50 more his average number of copies decreased by 2.

35-2 = 33

Next, we know that he adds $.50 for his price for each copy. If the price is $10 per copy than it looks like this:

$10+$.50= 10+.5

or if the price is not $10 it will be

$x+$.5= x+.5

marysya [2.9K]3 years ago
3 0

Answer:

y = -x^2 − 2.5x + 350

Step-by-step explanation:

y = (10 + 0.5x)(35 − 2x)

y = 350 − 20x + 17.5x − x^2

y = 350 − 2.5x − x^2

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