You need a 30% alcohol solution. On hand, you have a 50 mL of a 20% alcohol mixture. You also have 35% alcohol mixture. How much of the 35% mixture will you need to add to obtain the desired solution?You need a 30% alcohol solution.

100 mL

Step-by-step explanation:

If x is the volume of 35% solution, then:

0.35x + 0.20(50) = 0.30(x + 50)

0.35x + 10 = 0.30x + 15

0.05x = 5

x = 100

You need 100 mL of 35% solution.

2 and 1.

step-by-step explanation:

plug in each answer. 0 doesn't work, 1 does. so does 2. 4 doesn't:

0 = 1 is not true.

2 = 2 is true.

4 = 4 is true.

8 = 16 is not true.

hope this !

step-by-step explanation:

their are no angles. sorry cant .