How many liters of 60% alcohol solution should be added to 40 liters of a 20% alcohol solution to make a 50% solution?

120 liters of 60% alcohol solution is needed

Step-by-step explanation:

Let's assume

x liters of 60% alcohol solution  is added

so, we  get solution as

we are given

40 liters of a 20% alcohol solution is

so, total alcohol solution is

now, we can find total solutions

total solutions is

now, it is making 50% solution

so, we get

now, we can solve for x

So,

120 liters of 60% alcohol solution is needed

{3 + i, 3 - i, 3, -1}

step-by-step explanation:

the red lines denote the population of the bacteria after 35 hours. that would be 2,409.24. the y-intercept is the blue line which is 800 because that is the starting point. the equation used to make the graph is 800(1.032)^h, where h is the number of hours.

step-by-step explanation: