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Fantom [35]
2 years ago
10

Evaluate the expression for x = 15. X - 5 =

Mathematics
2 answers:
soldier1979 [14.2K]2 years ago
4 0

Steps to solve:

x - 5 for x = 15

~Substitute

15 - 5

~Subtract

10

Best of Luck!

Tatiana [17]2 years ago
4 0

Answer:10

Explanation:

15-5=10

Hope this helps

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The marginal cost of drilling an oil well depends on the depth at which you are drilling; drilling becomes more expensive, per m
sukhopar [10]

Answer:

4,250,000 riyals

Step-by-step explanation:

The total cost of drilling a 500-meter well is the sum of fixed costs (1,000,000 riyals) and variable costs.

By integrating the marginal cost function we get the variable costs function. Evaluating the variable costs function from 0 to 500 meters, gives us the total variable cost.

C(x) =\int\limits^{500}_0 {C(x')} \, dx  =\int\limits^{500}_0 {(4000 + 10x)} \, dx \\C(x)=4000x +5x^2 +c|^{500}_0\\C(500) - C(0) = (4000*500 +5*500^2 +c) - (4000*0 +5*0^2 +c)\\C(500) - C(0) = 3,250,000

Total cost of drilling is:

TC = 3,250,000 + 1,000,000\\TC = 4,250,000\ riyals

4 0
3 years ago
Which matrices can be added together?<br> please help, thank you
sergiy2304 [10]
K with T. Same row and columns
3 0
3 years ago
Twenty of the 25 students in Mrs. Thigpen’s class are we wearing sneakers. What is the fraction in simplest form?
fredd [130]

Answer:

4/5

Step-by-step explanation:

20/25 = 4/5

4 0
3 years ago
A rectangular box with a square base contains 24 cubic feet. if the height of the box is 18 inches, how many feet are there in e
Romashka-Z-Leto [24]

Answer:

4

Step-by-step explanation:

V = Lwh

the volume (given) = 24 ft^3

the height (given) = 18" = 1.5'

24 = L*w*1.5

divide both sides by 1.5

16 = Lw

You need to find the number of feet in each side of the base

since the box has a square base

L = W

AND, found above, L*w = 16

so 4*4= 16

Answer - 4

3 0
3 years ago
Julie has 30 pounds of chocolate that
Fudgin [204]

Answer:

30 boxes

Step-by-step explanation:

1 box = 1 pound

x = 30 pound

30 Cross multiplied with 1

= 1 *30 =30

therefore: Julie can fill 30 boxes

7 0
2 years ago
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