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Reika [66]
3 years ago
15

7x-4y=-7 5x+y=22 please show work

Mathematics
1 answer:
Keith_Richards [23]3 years ago
3 0
What exactly are you finding 

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the jar above is filled to the top with hot fudge and sells for $3.99 what is the price per inch. also please use this as (3.14)
iogann1982 [59]

Its me again, please make sure to give me brainliest.

Answer:

0.25

Step-by-step explanation:

volume = 5 * 1 * pi = 15.7

So price per CI = 3.99 / 15.7 = 0.25414...

5 0
3 years ago
Answers:<br><br> A and B<br><br> B and D<br><br> A and C<br><br> B and C
tekilochka [14]

Answer:

A and B

I hope this helps you

5 0
4 years ago
Solve for x: |2x + 12| = 18
erastova [34]
|2x + 12| = 18

First, break down the problem into 2 equations . / 2x + 12 = 18 and -(2x + 12) = 18
Second, solve the first equation. / 2x + 12 = 18
Subtract 12 from both sides. / 2x = 18 - 12
Subtract 18 - 16. / 2x = 6
Divide both sides by 2. / x =  \frac{6}{2}
Simplify. / x = 3
Third, solve the second equation. / -(2x + 12) = 18
Simplify your brackets. / -2x - 12 = 18
Add 12 to both sides. / -2x = 18 + 12
Add 18 + 12. / -2x = 30
Divide both sides by -2. / x =  \frac{30}{-2}
Simplify. / x =  -\frac{30}{2}
Simplify. / x = -15
Fourth, collect the solutions. / x = -15,3

Answer: x = -15, 3


8 0
3 years ago
The price-demand and cost functions for the production of microwaves are given as
Nikolay [14]

Answer:

<u>ALTERNATIVE 1</u>

a. Find the profit function in terms of x.

P(x) = R(x) - C(x)

P(x) = (-60x² + 275x) - (50000 + 30x)

P(x) = -60x² + 245x - 50000

b. Find the marginal cost as a function of x.

C(x) = 50000 + 30x

C'(x) = 0 + 30 = 30

c. Find the revenue function in terms of x.

R(x) = x · p

R(x) = x · (275 - 60x)

R(x) = -60x² + 275x

d. Find the marginal revenue function in terms of x.

R'(x) = (-60 · 2x) + 275

R'(x) = -120x + 275

The answers do not make a lot of sense, specially the profit and marginal revenue functions. I believe that the question was not copied correctly and the price function should be p = 275 - x/60

<u>ALTERNATIVE 2</u>

a. Find the profit function in terms of x.

P(x) = R(x) - C(x)

P(x) = (-x²/60 + 275x) - (50000 + 30x)

P(x) = -x²/60 + 245x - 50000

b. Find the marginal cost as a function of x.

C(x) = 50000 + 30x

C'(x) = 0 + 30 = 30

c. Find the revenue function in terms of x.

R(x) = x · p

R(x) = x · (275 - x/60)

R(x) = -x²/60 + 275x

d. Find the marginal revenue function in terms of x.

R(x) = -x²/60 + 275x

R'(x) = -x/30 + 275

7 0
3 years ago
what is the slope of the line that passes through the points -10, 8 and -15 , -7 write your answer in simplest form 20 points​
murzikaleks [220]

Answer: -3 fraction form

-5

Step-by-step explanation:

3 0
3 years ago
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