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blagie [28]
3 years ago
15

a certain drug is made from only two ingredients compound a and compound be there are 5 ml of compound a used for every form a c

ompound be if a chemist wants to make 549 ml of the drug how many milliliters of compound a​
Mathematics
1 answer:
kaheart [24]3 years ago
6 0

Answer:

109.8

Step-by-step explanation:

549/5 =109.8

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Evaluate the equation 4K-10/k=8
solong [7]

Answer:

k = 1 + sqrt(7/2) or k = 1 - sqrt(7/2)

Step-by-step explanation:

Solve for k over the real numbers:

4 k - 10/k = 8

Bring 4 k - 10/k together using the common denominator k:

(2 (2 k^2 - 5))/k = 8

Multiply both sides by k:

2 (2 k^2 - 5) = 8 k

Expand out terms of the left hand side:

4 k^2 - 10 = 8 k

Subtract 8 k from both sides:

4 k^2 - 8 k - 10 = 0

Divide both sides by 4:

k^2 - 2 k - 5/2 = 0

Add 5/2 to both sides:

k^2 - 2 k = 5/2

Add 1 to both sides:

k^2 - 2 k + 1 = 7/2

Write the left hand side as a square:

(k - 1)^2 = 7/2

Take the square root of both sides:

k - 1 = sqrt(7/2) or k - 1 = -sqrt(7/2)

Add 1 to both sides:

k = 1 + sqrt(7/2) or k - 1 = -sqrt(7/2)

Add 1 to both sides:

Answer: k = 1 + sqrt(7/2) or k = 1 - sqrt(7/2)

4 0
3 years ago
10 = 4 + c Question 1 options: c = 2 c = 6 c = 12 c = 14
BARSIC [14]

Answer:6

Step-by-step explanation:

6+4=10

10=6+4

3 0
3 years ago
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What percentage of students earning degrees in 2009 were awarded a professional degree?
Dima020 [189]

data is not provided. what type of degrees? and which country?

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3 years ago
How do you find the domain & range ?
liberstina [14]
Domain is x while Range is Y
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3 years ago
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2 years ago
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