Question

10. Angle J and angle K are supplementary. The measure of angle J is 2x +5°. The measure of

angle K is 3x – 10°. What is the measure of angle K?
A. 470
B. 79°
C. 88°
D. 101°
PLS HELP

Answer 1

Its D

Explanation:

Given, they are supplementry

hence their sum is 180 degree

now, 2x+5+3x-10=180

or, 5x-5=180

or, 5x=185

or, x=185÷5

or, x=37

Then, here we have measures of angle k is

3×37-19

=101