Someone help big ideas 8.6 number 20

Answers:

Explanation:

Let x and y be the two angles such that x < y. Also, we'll make both values to be positive numbers.

Since one angle is 1/3 of the other angle, this means

smaller angle = (1/3)*(larger angle)

x = (1/3)y

3x = y

y = 3x

The two angles add to 180 degrees since they are a linear pair. A linear pair of angles always forms a straight line.

x+y = 180

x+3x = 180

4x = 180

x = 180/4

x = 45

Use that x value to find y.

y = 3x

y = 3*45

y = 135

The two angles are x = 45 and y = 135

Check:

x+y = 45+135 = 180

so the answer is confirmed.

b.) divide by -5.

step-by-step explanation: