X: 4 units of a and 5 units of b per hour y: 3 units of a and 10 units of b per hour cost to run machine x: $22/hr cost to run machine y: $25/hr x=number of hours machine x runs y=number of hours machine y runs the objective function is c = x + y.

answer: 5x for 5

step-by-step explanation:

becuase

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.

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step-by-step explanation: