Question

the two adjacent angles on a straight line are (3x+20) degrees and (5x+40)degrees , then the angles are
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Answer 1

Answer:

i)65 deg ii)115 deg

Step-by-step explanation:

linear pair property,

3x+20+5x+40=180

8x+60=180

8x=120

x=120/8=15

so..,3(15)+40  n  5(15)+65...r ur angles..

Answer 2

Answer:

Step-by-step explanation:

3x+20+5x+40=180

8x+60=180

8x=180-60

8x=120

X=120÷8

X=15

So the angles are

3x+20=3×15+20

=65°

5×x+40=5×15+40

=115°