algebra 1 answer

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 60 milligrams of Medication A with 54 milligrams of Medication B. However this week, the doctor said to only use 45 milligrams of Medication B. How many milligrams of Medication A should be mixed this week?

Answer: milligrams

Answer 1

A : B :: 60 : 54

A : 45 :: 40 : 54

54A = (45)(40)

Can you solve for A and answer?