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Mathematics 14 Online
OpenStudy (anonymous):

helpp on geometry

OpenStudy (apolloschariot):

can you post your question?

OpenStudy (anonymous):

This is it

OpenStudy (apolloschariot):

#41?

OpenStudy (anonymous):

and #42 if you can i put the pic of that question after if u want to do it with me

OpenStudy (nikato):

First, you want to solve for x. And you know <CDK + <KDE =<CDE Can you set up the eqûation?

OpenStudy (anonymous):

yes lemme do it for yu

OpenStudy (anonymous):

30+14x-2=1+23x 28+14x=1+23x -9x=17 x=-3

OpenStudy (nikato):

You made some algebraic error. Should have gotten x=3

OpenStudy (anonymous):

yes your right it is 3

OpenStudy (nikato):

Ok. Now plug in 3 for x to solve for <CDE

OpenStudy (anonymous):

so its 70

OpenStudy (nikato):

Correct

OpenStudy (anonymous):

so now can you help me with number 42

OpenStudy (anonymous):

This is 42

OpenStudy (nikato):

Same thing. Set up an equation and solve for x first

OpenStudy (anonymous):

180+3x-10=-10+17x 170+3x=-10+17x 180=14x x=12.8

OpenStudy (nikato):

Not quite. It's <WDC + <WDE= <CDE

OpenStudy (nikato):

Because those two angles put together makes <CDE

OpenStudy (anonymous):

3x-10-10x+17=180 -7x+7=180 -7

OpenStudy (anonymous):

i got a decimal also

OpenStudy (anonymous):

24.7

OpenStudy (nikato):

I think you're copying the problem wrong. 3x -10 -10 +17x=180

OpenStudy (anonymous):

3x-10-10+17x=180 20x-20=180 20x=200 x=10

OpenStudy (nikato):

Correct. Now plug 10 for x and solve for <WDE

OpenStudy (anonymous):

160

OpenStudy (nikato):

Correct

OpenStudy (anonymous):

thank you so much i really appreciate it!!!!!!!!!!!!

OpenStudy (nikato):

No problem

OpenStudy (anonymous):

this just made me finish my summer packet

OpenStudy (anonymous):

and thanks for the medal too!!

OpenStudy (nikato):

Eww. You have summer hw

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