Solve the system using subtitions {5x-y=5
5x3y=15

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Step-by-step explanation:

5 x − y = 15

Add  y  to both sides of the equation.

5 x = 15 + y

Divide each term by  5  and simplify.

x= 3 + y 5

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.