Problema Solution
In a metal alloy composed entirely of zinc and copper, 3 of every 22 pounds is zinc. If the alloy weighs 1056 lbs, how many pounds of zinc and how many pounds of copper does it have?
Answer provided by our tutors
let 'x' represent the pounds of copper, then '(3/22)x' represents the pounds of zinc
1056 = x + (3/22)x
solving for 'x' we have x=929.28
1056-929.28 = 126.72
the alloy contains 929.28 pounds of copper and 126.72 pounds of zinc