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)

Step-by-step explanation: i got it right on edgenuity

the answer is 0.8(100 – x) + 0.6x = 100(0.65)

Step-by-step explanation:

i just took the test

i am sure it will be 90 degrees.

step-by-step explanation:

correct answer is infinitely many solutions

step-by-step explanation:

2(2x + 3) = -4 + 2(2x + 5)

solving the above equation:

4x + 6 = -4 +4x +10

combining like terms

4x -4x = -4+10-6

0=0

since both sides are 0=0, we end up into true statement it means it has infinite many solutions.

so correct answer is infinitely many solutions