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alisha [4.7K]
2 years ago
7

Fifteen more than half a number is 9

Mathematics
1 answer:
drek231 [11]2 years ago
6 0

-12

9-15=-6

-6*2=-12

n/2+15=9

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julia-pushkina [17]

Answer:

Below in bold.

Step-by-step explanation:

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A metal bar weighs 9.25 ounces. 65% of the bar is gold. how many ounces of gold is in the bar?
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In 2004, a magazine's circulation was about 1,000,000 readers. In 2014, the magazine had about 2,000,000 readers. Write a linear
Sever21 [200]

Answer:

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So then the linear model for this case should be:

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Step-by-step explanation:

For this case we want to find a linear model given by:

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For this case we can define the following points from the data given:

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(t_2, r_2) = (14, 2000000) 14 years after 2000

We can find the slope with the following formula:

m= \frac{r_2 -r_1}{t_2 -t_1}= \frac{2000000-1000000}{14-4}=100000

And then we can use for example the first point (t_1, r_1) = (4, 1000000) to find the intercept:

1000000= 100000*4 + b

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So then the linear model for this case should be:

r = 100000 t + 600000

8 0
3 years ago
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