SOLUTION: A pharmacist has two vitamin-supplement powders. The first powder is 15% vitamin B1 and 15% vitamin B2. The second is 5% vitamin B1 and 15% vitamin B2. How many milligrams of each

Algebra ->  Coordinate Systems and Linear Equations -> SOLUTION: A pharmacist has two vitamin-supplement powders. The first powder is 15% vitamin B1 and 15% vitamin B2. The second is 5% vitamin B1 and 15% vitamin B2. How many milligrams of each       Log On


   

Question 1073758: A pharmacist has two vitamin-supplement powders. The first powder is 15% vitamin B1 and 15% vitamin B2. The second is 5% vitamin B1 and 15% vitamin B2. How many milligrams of each of the two powders should the pharmacist use to make a mixture that contains 59 mg of vitamin B1 and 69 mg of vitamin B2?
Answer by josgarithmetic(39618) About Me  (Show Source):
You can put this solution on YOUR website!
x of the first powder
y of the second powder

Account for vitamin B1
0.15x%2B0.05y=59

Account for vitamin B2
0.15x%2B0.15y=69

Simple use of Elimination will let you solve for y, first.