Explain why you would solve the system y = 2x and 3x + y = 10 using substitution instead of by graphing?

Step-by-step explanation: I would use substitution for this system because one of the variables, y, is already isolated in the first equation.

If we were to solve by graphing, we would first need to convert the

second equation to y = mx + b form and then graph both of the lines.

c.

step-by-step explanation:

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.