Question

Medal & fan for help :)
The following two angles are supplementary. Use this fact to first solve for x, then the value of each angle.
mÐ1 = 12x + 35
mÐ2 = 3x – 5
a. x = 5; 155º; 25º
b. x = 5; 125º; 55º
c. x = 10; 155º; 25º
d. x = 10; 125º; 55º

Answer 1

supplementary angle means if you add up two numbers then you will get 180.
So add mD1 and mD2 .You will get a equation . from that equation find the value of x.

Answer 2

@mikurout , so i would add 12x & 3x ?

Answer 3

your equation is 12x+35+3x-5 = 180
solve it to get the value of x.

Answer 4

so i would combine like terms ?

Answer 5

@ninaesb . yes . Add 12x with 3x
you will get 15x.
then add 35 with -5
you will get 30
so your final equation is
15x+30 = 180

Answer 6

so x=10 ?

Answer 7

@mikurout

Answer 8

@ninaesb . Yes, You are right.

Answer 9

@mikurout is it c ?

Answer 10

@ninaesb yes, You are right.

Answer 11

thanks :) can you help me through a couple more ?

Answer 12

Yes