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**zee-f****Member**- Registered: 2011-05-12
- Posts: 1,220

Hey guys,

I answered these questions and I was wondering if they are correct

16-C

16. 68, 86

A 45

B 56

C 26

D 19

E 32

F 82

17- F

17. 55, 77

A 18

B 37

C 62

D 57

E 20

F 48

18-A

18. a, (a + 80)

A 100 - 2a

B 112 - 7a

C 182 - 2a

D 254 - 5a

E 311 - 3a

F 302 - 1a

19-D

19. x, (x + 20)

A 189 - 7x

B 167 - 1x

C 114 - 5x

D 160 - 2x

E 124 - 2x

F 142 - 1x

20-A but am really stuck and confused on this one

20. m, 2m

A 172 - 2m

B 187 - 7m

C 124 - 4m

D 143 - 1m

E 164 - 9m

F 180 - 3m

One, who adopts patience, will never be deprived of success though it may take a long time to reach him. Imam ali (as)<3

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**zee-f****Member**- Registered: 2011-05-12
- Posts: 1,220

I got all of them correct but 20 so wouldn't be m+2m=180

*Last edited by zee-f (2012-09-20 07:31:18)*

One, who adopts patience, will never be deprived of success though it may take a long time to reach him. Imam ali (as)<3

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**bobbym****Administrator**- From: Bumpkinland
- Registered: 2009-04-12
- Posts: 86,366

Hi zee-f;

Now solve for c.

**In mathematics, you don't understand things. You just get used to them.Of course that result can be rigorously obtained, but who cares?Combinatorics is Algebra and Algebra is Combinatorics.**

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**zee-f****Member**- Registered: 2011-05-12
- Posts: 1,220

(m+2m)+c=180

m+2m=3m

3m+c=180

-3m -3m

c= 180-3m

so the answer would be F

One, who adopts patience, will never be deprived of success though it may take a long time to reach him. Imam ali (as)<3

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**noelevans****Member**- Registered: 2012-07-20
- Posts: 236

Hi zee-f!

In all these problems you are to find the supplement to the sum of the two given angles I assume.

That would be in all these cases 180 - (sum of the two angles).

Eg. 16) 180-(68+86) = 180-154 = 26.

20) 180-(m+2m) = 180-3m.

Be blessed!

Writing "pretty" math (two dimensional) is easier to read and grasp than LaTex (one dimensional).

LaTex is like painting on many strips of paper and then stacking them to see what picture they make.

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**bobbym****Administrator**- From: Bumpkinland
- Registered: 2009-04-12
- Posts: 86,366

Hi zee-f;

so the answer would be F

Yep!

**In mathematics, you don't understand things. You just get used to them.Of course that result can be rigorously obtained, but who cares?Combinatorics is Algebra and Algebra is Combinatorics.**

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**zee-f****Member**- Registered: 2011-05-12
- Posts: 1,220

Thanks a lot guys!

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**bobbym****Administrator**- From: Bumpkinland
- Registered: 2009-04-12
- Posts: 86,366

Hi zee-f;

You did very well!

**In mathematics, you don't understand things. You just get used to them.Of course that result can be rigorously obtained, but who cares?Combinatorics is Algebra and Algebra is Combinatorics.**

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