2 years ago

Use the substitution method to solve the system of equations: y = 2x + 7; x = 9

Mathematics

1 answer:

Fiesta28 [93]2 years ago

8 0

Y=25 ⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀ ⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀

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Recall Marginal Cost is the derivative of Total Cost, and Fixed Cost is the cost of producing zero units.

olga nikolaevna [1]

Answer:

The total cost of producing 91 units of ACME rocket fuel is $3999.99.

Step-by-step explanation:

The Marginal Cost is given by the following function

$MC(q) = 200*(q+9)^{-5}$

The total cost function is the integrative of the marginal cost function. So:

$TC(q) = \int {MC(q)} \, dq$

$TC(q) = \int {200*(q+9)^{-5}} \, dq$

$TC(q) = -50*(q+9)^{-4} + K$

In which K, the integrative constant, is the fixed cost. So $K = 4000$ .

1. Find the total cost of producing 91 units of ACME rocket fuel.

This is TC(91).

$TC(91) = -50*(91+9)^{-4} + 4000 = 3999.99$

The total cost of producing 91 units of ACME rocket fuel is $3999.99.

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3 years ago

A number divided by 5 is 3 more than -6<br> A)-45<br> B)-30<br> C)-15<br> D)-5

mash [69]

The answer is C

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r=35.7+1.37t The equation above relates the urbanization rate r, as a percent, in a particular country to the number of years t

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Answer: 37.07

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3 years ago

HELLPPPPPPPP A Blue Ray Player costs $150 and each disc costs $15.50.

Sliva [168]

Answer:

150 + 15.50 x 0.075

Step-by-step explanation:

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3 years ago

Which three of the following mixed numbers will produce a whole number when added?

Wewaii [24]

Answer:

$4\frac{1}{8} , 4\frac{3}{8} , 2\frac{1}{2} = 11$

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