Kristina needs to mix a 10% alcohol solution with a 50% alcohol solution to create 200 millileters of a 48% solution. How many millileters of each solution must Kristina use? Kristina must mix
millileters of 10% solution and
millileters of 50% solution.

Step-by-step explanation:

Let v represent the volume of the 50% solution, in milliliters. Then 200-v will be the volume of 10% solution. The amount of alcohol in the mix will be ...

  0.50v +0.10(200-v) = 0.48(200)

  0.40v +20 = 96 . . . . . . simplify

  0.40v = 76 . . . . . . . . . subtract 20

  v = 190 . . . . . . . . . . . divide by 0.4

Kristina must mix ...

  10 mL of 10% solution

  190 mL of 50% solution

i dont understand the question? ?

step-by-step explanation:

vwhat effect does the word head have on the meaning of this passage?

a. it demonstrates how intelligent he was.

b. it shows he was a favorite of the teachers.

c. it indicates he would be a good preacher.

d. it reveals how self-important he was.

how does the choice of the word head contribute to the passage’s tone?

a. it offers a sense of entitlement.

step-by-step explanation: