Ascientist needs 120ml of a 20% acid solution for an experiment. the lab has available a 10% solution and a 25% solution. how many millimeters of the 10% solution and how many millimeters of the 25% solution should the scientist mix to make the 20% solution?

40ml of 10% and 80ml of 25%

Step-by-step explanation:

10x+25(120-x)=2400

-15x+3000=2400

15x=600

x=40

answer rather than having to add and subtract the measurements of the semi-circle, notice that the semicircle to the left of ad is actually identical in area to the blank semicircle-shaped space to the left of bc. so if we transferred the red semicircle into the blank space, we would end up with a square of side length 24 cm. the area of a square is s^2 = 24^2 = 676 cm^2.

u also answered this so i think u would know but i am here to

put in or use mine

step-by-step explanation:

divide, then simplify your answer.

1. make -15.66 ÷   5.8 a fraction. then divide.

2. simplify.  

3. final answer.