## alainabbyboo22 3 years ago The ratio of the measures of two supplementary angles is 7:3. Find the measures of the angles. A. 126° and 54° B. 72° and 18° C. 159° and 21° D. 69° and 21°

1. jim_thompson5910

Hint: If "The ratio of the measures of two supplementary angles is 7:3", then 7x+3x = 180 Solve for x. Then use this to find 7x and 3x

2. Hpbby

10x=180

3. Hpbby

simplify

4. alainabbyboo22

i'm so confused !

5. jim_thompson5910

What is 180 divided by 10

6. alainabbyboo22

18

7. jim_thompson5910

So x = 18

8. jim_thompson5910

Now use this to find 7x and 3x

9. Hpbby

Right so plug in 18 as x

10. jim_thompson5910

I'll do 7x 7x = 7*18 7x = 126

11. Hpbby

7*18 and 3*18=180

12. jim_thompson5910

3*18 = 54, not 180

13. Hpbby

You just gave her the answer lol. i put everything in one equation so she could see it better...

14. jim_thompson5910

oh i see what you did, you just wrote it in an odd way

15. Hpbby

lol sorry

16. jim_thompson5910

that's ok

17. alainabbyboo22

lol its all good both of you , i appreciate the help ! thank you very much !!

18. Hpbby

:)