Question 1194833
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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 30 milligrams of Medication A with 18 milligrams of Medication B. However this week, the doctor said to only use 12 milligrams of Medication B. How many milligrams of Medication A should be mixed this week?
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Must we ASSUME that the ratio of A to B is in the same as before? ONLY if that, then

{{{A/B=highlight_green(30/18=a/12)}}}
and you can solve for "a".