Mathematics, 07.04.2020 23:29 anjah
Brass is made from a mixture of copper and other elements. A mixture that is 80% copper is combined with a mixture that is 60% copper, resulting in 100 pounds of brass that is 65% copper.
Which equation can be used to find x, the amount of 60% mixture used to create the 65% mixture?
0.8(100 – x) + 0.6x = 100(0.65)
0.6(100 – x) + 0.8x = 100(0.65)
0.8(100) + 0.6x = 0.65(100 - x)
0.6(x) + 0.8(100 + x) = 0.65
Answers: 3
Mathematics, 21.06.2019 17:30, jessied2000
What is not true about kl and mn? what is mn? (show your work)
Answers: 1
Mathematics, 21.06.2019 18:00, babydolltia28
Is a positive integer raised to a negative power always positive
Answers: 1
Mathematics, 21.06.2019 19:00, shadow29916
Solve x+3y=6 and 4x-6y=6 by elimination . show work !
Answers: 1
Brass is made from a mixture of copper and other elements. A mixture that is 80% copper is combined...
Mathematics, 31.08.2019 20:50
Mathematics, 31.08.2019 20:50
History, 31.08.2019 20:50
Mathematics, 31.08.2019 20:50
History, 31.08.2019 20:50
History, 31.08.2019 20:50