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nikitadnepr [17]
3 years ago
5

How do you figure this out? I am having a hard time. The variables x and y are related to proportionally. When x = 8, y = 20. Fi

nd y when x = 80.
When x = 80, y
Mathematics
1 answer:
kvv77 [185]3 years ago
5 0

Answer:

200

Step-by-step explanation:

(80×20)/8

y is equal to 200

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The question is incomplete.

The complete question is in the picture, please refer to the attached picture.

We have two equations:

y = –2x – 1 and

\rm y = 3^{-x-1}

From the graph, we can see:

There are two intersection points:

(-1, 1) and (-2, 3)

The x coordinates are -1 and -2

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x = -2, y = 3

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2 years ago
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denis-greek [22]

Answer:

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Step-by-step explanation:

Let us use the composite function to solve the question

∵ f(x) = 2x - 1

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→ f(g(x)) means substitute x in f(x) by g(x)

∴ f(g(x)) = 2[g(x)] - 1

→ Equate the two right sides of f(g(x))

∴ 2[g(x)] - 1 = 10x + 3

→ Add 1 to both sides

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∴ 2[g(x)] = 10x + 4

→ Divide each term into both sides by 2

∵ \frac{2[g(x)]}{2} = \frac{10x}{2} + \frac{4}{2}

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REY [17]
The 16-ounce soft drink for $1.99 is better because it may be 40 cents more but it's also bigger :)
7 0
2 years ago
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Answer:

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