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Algebra
Question

A doctor's prescription calls for the creation of ...

A doctor's prescription calls for the creation of pills that contain \( 12 \) units of vitamin \( B _ { 12 } \) and \( 12 \) units of vitamin E. Your pharmacy stocks two powders that can be used to make these pills: One contains \( 20 \% \) vitamin \( B _ { 12 } \) and \( 30 \% \) vitamin E, the other \( 40 \% \) vitamin \( B _ { 12 } \) and \( 20 \% \) vitamin E. How many units of each powder should be mixed in each pill? 

Answer

x = 30 units of the 1st power

y = 15 units of the 2nd powder

Solution
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