In the lab, Donna has two solutions that contain alcohol and is mixing them with each other. Solution A is 5% alcohol and Solution B is 2%
alcohol. She uses 400
milliliters of Solution A. How many milliliters of Solution B does she use, if the resulting mixture is a 3%
alcohol solution?

an

y = 6x -3y -12

y +3y +12 = 6x

=> . x = { 2y / 3 +2 } this is equation of line in terms of x

=> . if line meets the x-axis the co-ordinates of meeting point would be ( x , 0 )

=> . x = 2 ( 0 ) / 3 + 2

=> . x = 2

so, the point is ( 2 , 0 )

tip $2.90

total $17.40

4+4+2x

or

2x+8

step-by-step explanation: