Work Step by Step
x= amount of 30% gold y=amount of 10% gold Given based to the problem: x+y=4 0.3x+0.1y=0.15(4) x=4-y 0.3(4-y)+0.1y=0.15(4) 1.2-0.3y+0.1y=0.6 -0.2y=-0.6 y=3 x=4-3 =>x=1 Solution (1,3)
You can help us out by revising, improving and updating this answer.Update this answer
After you claim an answer you’ll have 24 hours to send in a draft. An editor will review the submission and either publish your submission or provide feedback.