How much water should be added to 10 mL of 14% alcohol solution to reduce the concentration to 5%? We should add___mL.

X = 2 mL

Step-by-step explanation:

Let's do it  

X = the amount of water added to the solution (in mL)

.06(10) = .05(10 + X)

.6 = .5 + .05X

.1 = .05X

2 = X

X = 2 mL

207/8 is the right

for this case we have by definition, if two lines are perpendicular, then the product of their slopes is -1.

then, given the following line:

so,

we are looking for m_ {2}:

then, the line is given by:

we find "b" replacing the given point:

finally, the equation is:

option c