Irvin is a pharmacy technician making an antibiotic solution for a patient. He has 20% solution and needs to make a 5% solution. The patient also needs to take 5 mL of solution each day for two weeks. Which best describes how
Irvin should make the drug?

O He should make 1.25 mL of the 20% solution in 68.75 mL of solvent.
O He should make 8.75 mL of the 20% solution in 26.25 mL of solvent.
O He should make 17.5 mL of the 20% solution in 52.5 mL of solvent.
He should make 20 mL of 20% solution in 15 mL of solvent.

x = -6.5

explanation:

with this editor, you should be careful to put what you mean. 5/(2x - 7) = 3/(4x +14) is the way i will interpret it. cross multiply

5*(4x + 14) = 3*(2x - 7)       remove the brackets

20x + 70 = 6x - 21             add 21 to both sides

20x+ 70+21= 6x                 combine

20x + 91 = 6x                     subtract 20x

20x-20x+91=6x-20x           combine

91 = - 14x

x = - 91/14

x = - 6.5

answer:

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explanation:

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answer:

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answer:

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Explanation:

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