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ryzh [129]
3 years ago
6

Look at pic!! #9 pls. Thank youuuuu. 20 points

Mathematics
1 answer:
Karolina [17]3 years ago
4 0
35n=280
n=8 8 dimes and 8 quarters
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Solve for x: −5|x + 1| = 10
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|a|\geq0\ for\ a\in\mathbb{R}\\\\|a|=a\ for\ a\geq0\\\\|a|=-a\ for\ a

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The correct answer to question 1 is: (C. P (v)=4500v
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What two numbers have a product of -25 and a sum of 24?​
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3 years ago
Please give answer of 6 number​
Irina18 [472]

Answer:

7,500

Step-by-step explanation:

Let's solve this problem step-by-step. The library had 1,500 books in 2011. The ratio of books in 2011 and in 2012 is 1:2. Therefore, let the number of books in 2012 be x.

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Therefore, there were 3,000 books in 2012. The ratio of books in 2012 and in 2013 is 2:5. Let the number of books in 2013 be y.

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\frac{2}{3,000}=\frac{5}{y},\\2y=5\cdot 3,000,\\2y=15,000\\y=\boxed{7,500}

Therefore, there were 7,500 books in 2013.

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