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Romashka-Z-Leto [24]
3 years ago
7

The table shows the population of a school for the years 1992-2008. Year: 1992, 1994 1996, 1998, 2000, 2002, 2004, 2006, 2008. P

opulation: 628, 656, 692,751, 793, 840 ,868, 902, 940. Which of the following is the best prediction for the population in 2012? A. 1000 B. 1100 C. 1150 D. 2010

Mathematics
2 answers:
rusak2 [61]3 years ago
4 0
This answer was wrong and not 1100
Rom4ik [11]3 years ago
4 0

Answer:

(A) 1000

Step-by-step explanation:

We will form a graph of the points give.

Let x denotes the year and y denotes the population in the corresponding year.

We get the best fir line as :

y =20.225x-39664

Now, to evaluate the population in 2012, we will put x=2012

y = 20.225(2012) - 39664

y = 1028.7

So the best prediction for the population in 2012  is 1000.

Hence, option (A) is correct.

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Jenny bought a 5 notebooks and 2 pencils, and the total was 9 dollars.
weeeeeb [17]
You would solve this with simultaneous equations, so if we write it as:
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2n = 3
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Now you would substitute it in:
(3 × 1.5) + 2p = 6
4.5 + 2p = 6
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2p = 1.5
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pens = 0.75

So your final answer is notebooks are $1.50 and pens are $0.75, I hope this helps!
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3 years ago
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dmitriy555 [2]
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2 years ago
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What happens to the value of the expression 80-2r as r decreases?
Ghella [55]

Answer:The value of the expression increases as r decreases.

Step-by-step explanation:

To find : What happens to the value of the expression as r decreases?

Given Expression: 80-2r

We check for different value of r as decreasing order,

r        80-2r

5        80-10=70

4        80-8=72

3        80-6=74

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As r decreases the value of expression increases.

Therefore, the value of the expression increases as r decreases.

Hope this helps!

8 0
3 years ago
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You and 4 friends are starting a business selling bagels. The 5 of you open a bank account strictly for the business. You would
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Answer:

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At BBQ Shack they only sell ribs, the cost of a half rack x is $10 and the cost of a full rack y is
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You are trying to get the sales to equal 300 so the 10x and 20y added together will get you 300

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