I made this chart:One alloy is one part copper to three parts tin. A second alloy is one part copper to four parts tin. How much of a second alloy shold be combined with 24 pounds of the first allow to obtain a new alloy that is two parts copper to seven parts tin?
And then got:Code:Amount (lbs) % Copper Total Copper Alloy 1 24 .25 .25(24) Alloy 2 x .20 .20x Mix 24+x 2/7 2/7(24+x)
Where did I go wrong?