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vlada-n [284]
3 years ago
5

6 1/2+n=12. please explain for me I dunno how to do this.

Mathematics
1 answer:
Temka [501]3 years ago
7 0
Hey there!

Let's first define our goal. Our goal here is to be able to isolate the variable, n, and solve for it by moving everything to the other side. We see that we have two sides of the equation, and by using the property of equality which states that whatever you do to one side you do to the other and the expression remains equal, we can solve this equation.

It looks like the only thing we have on the left side with n is that 6 1/2. In order to get rid of it, we must subtract it from both sides, because the property of equality states you must do the inverse operation.

We have:

n = 12 - 6 1/2

n = 5 1/2

Hope this helps!
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Answer:

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Step-by-step explanation:

This problem is solved using a compound interest function.

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y = P(1-n) ^ t

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The equation that models this situation is:

y = 34000(1-0.06) ^ t

Now we want to know after how many years the car is worth less than $ 21500.

Then we do y = $ 21,500. and we clear t.

21500 = 34000(1-0.06) ^ t\\\\log(21500/34000) = tlog(1-0.06)\\\\t = \frac{log(21500/34000)}{log(1-0.06)}\\\\t = 7.40\ years.

After 7.40 years it will be worth less than 21500

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Answer:

A. I only

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Step-by-step explanation:

I. y>2x

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Answer:

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Step-by-step explanation:

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