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Mathematics 20 Online
OpenStudy (anonymous):

Point C is the center of the circle. The measure of angle ACB is 15x + 20. Arc ADB measures 20x – 10. Find the value of x.

OpenStudy (anonymous):

17 10 7 10.57

OpenStudy (anonymous):

i got six but that isn't an option

OpenStudy (here_to_help15):

put them equal to each other and then solve

OpenStudy (anonymous):

that's what I tried doing.

OpenStudy (here_to_help15):

answer is x = 6

OpenStudy (driftracer305):

that's what she did........ obviously

OpenStudy (anonymous):

no it's not

OpenStudy (here_to_help15):

then you would add both the expressions together and make them equal 360 then solve for x

OpenStudy (anonymous):

Six isn't an option.

OpenStudy (here_to_help15):

ik i just saw i made a mistake

OpenStudy (here_to_help15):

A C D is like a straight line right ?

OpenStudy (here_to_help15):

so add the given two angles and solve them by making the sum equal to 180

OpenStudy (here_to_help15):

that way, x = 17/3

OpenStudy (anonymous):

this class stresses me out so much :-)

OpenStudy (here_to_help15):

u know what nvm forget i was here : P im obviously not helping :( srry

OpenStudy (anonymous):

no it's okay I understand you were trying to help

OpenStudy (anonymous):

why??? it's not that we have equation 15x+20+20x-10 =360 which gives us x =10

OpenStudy (anonymous):

add common terms together?

OpenStudy (anonymous):

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OpenStudy (anonymous):

OH YOU JUST ADDED THEM.

OpenStudy (anonymous):

I set them equal to each other.

OpenStudy (anonymous):

the small one is 15x+20, the big one is 20x-10

OpenStudy (anonymous):

ohoh!! how can they equal??

OpenStudy (anonymous):

we can see they are not equal, right?

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