Help if your good at maths

x=70

y= 30

z= 10

Step-by-step explanation:

X + 110 = 180 since they form a straight line

Subtract 110 from each side

x+110 -100 = 180-110

x = 70

Y + 110 + 40 = 180 since the three angles of a triangle add to 180

y+150 = 180

Subtract 150 from each side

y+150-150 = 180-150

y = 30

A + B+ C = 180 since the three angles of a triangle add to 180

90 + y+z+ 40 =180

90 + 30+z + 40=180

Combine like terms

170 +z = 180

z = 180-170

z = 10

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.