SOLUTION: An aircraft parts company has 130kg of an alloy that is 80% aluminum and 20% magnesium. How much pure magnesium should be added, so that the content is raised to 35%?
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Question 131490: An aircraft parts company has 130kg of an alloy that is 80% aluminum and 20% magnesium. How much pure magnesium should be added, so that the content is raised to 35%?
Please help, thanks! Answer by 067isa(13) (Show Source):
You can put this solution on YOUR website! 130kg
20% Mg= 20% * 130 = 26
80%Al= 80% * 130 =104
if you add them it should be the total mass 130
the question now is what is the amount that i need to put for the Mg to raise it to 35% insted of 20%?
x/130=0.35 it should be 45.5kg of Mg added , and the Al will be 84.5 kg
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