"Bucket method"
.. (4)*(14%) + (x)*(8%) = (4 +x)*(10%) . . . . . liters and % are in each "bucket"
.. 56 +8x = 40 +10x . . . . . multiply by 100, eliminate parentheses
.. 16 = 2x . . . . . . . . . . . . . . add -40-8x, then divide by 2
.. 8 = x
8 liters of 8% lemonade should be added to make the mixture 10% lemon juice.
The area is 4 square meters, because 2x2 would be 4
I think is uh.. i think is uh carrot
3x(3x-2y)
you have to find a common factor between the two numbers. in this case it's three, so you just divide each number by three.