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4 years ago

C(x)={0.35 if x ≤8,000 0.75 if 8,000

Mathematics

1 answer:

grin007 [14]4 years ago

5 0

There might be something missing in the given equation. Since C is a function of x, the equation must contain x. For sample purposes, let's just assume the equations are:

C(x) = 0.35x for x≤8000
C(x) = 0.75x for x≥8000

The domain is from 0 to 42000. This is the x-axis as shown in the picture. Sample calculations are shown on the left of the graph. The blue graph is for the function C(x) = 0.35x for x≤8000, while the orange graph is for the functionC(x) = 0.75x for x≥8000.The graph break is located when x = 8000.

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Answer:

see the explanation

The number of hot dogs that were sold is 15 and the the number of sodas that were sold is 75

Step-by-step explanation:

Let

x ---> the number of hot dogs that were sold

y ---> is the number of sodas that were sold

we know that

You sold a total of 90 hot dogs and sodas combined

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$2x+y=105$

isolate the variable y

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substitute equation B in equation A

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Find the value of y (equation B)

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therefore

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This isn't necessary if you know all the shortcuts, it just makes your life a bit easier.

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Make sure we have common denominators...check.

Multiply by the denominator...

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