One ounce of solution x contains only ingredients a and b in the ratio of 2: 3 one ounce of solution y count aims only ingredients a and b in the ratio of 1: 2 if solution z is created by mixing solutions x and y in the ration of 3: 11 then 2520 ounces of solution z contains how many ounces of a

Volume of a in z = 876 ounces

Step-by-step explanation:

For z, the ratio of x and y is 3 : 11

x : y = 3 : 11 , which means in 14 parts of solution z : x will be 3 parts and y will be 11 parts

So, in 2520 ounces solution of z ,

Volume of a in z = { Volume of a in x + Volume of b in x }

Therefore,

So, Volume of a in z = 876 ounces

15%

step-by-step explanation:

use the table and count the number of guesses that has two correct answers.

the following are two correct answers

10010, 01100, 11000

a total of 3 numbers having 2 correct guesses out of 20 questions.

probability of getting 2 correct guesses = the number of questions getting 2 correct answers / total number of questions.

= 3/20

to convert it into percent multiply by 100, we get

= 3/20 * 100

= 15%

the answer is 15%

you.

b

step-by-step explanation: