Question

As a nurse, part of your daily duties is to mix medications in the proper proportions for your patients. For

one of your regular patients, you always mix Medication A with Medication B in the same proportion. Last week, your patient's doctor indicated that you should mix 120 milligrams of Medication A with 180
milligrams of Medication B. However this week, the doctor said to only use 165 milligrams of Medication B.
How many milligrams of Medication A should be mixed this week?
Answer:

Answer 1

Hi ^^

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Solution:

Step one- Set up a ratio:

· Originally the ratio was: 110:143, make that equivalent to x:117

--> 110/143 = x/117 <-- notice this is A/B = A/B

--> to solve for x, just multiply by 117

x = 110 * 117 / 143 = 90 mg

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·You should use 90 mg of medication A

oki baiiii ^^