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Mathematics 7 Online
OpenStudy (buckybarnes):

please help!!!!

OpenStudy (buckybarnes):

OpenStudy (buckybarnes):

@3mar

hartnn (hartnn):

what did you try? know how to get \(\bar{CD} \) ?

OpenStudy (buckybarnes):

I don't know where to start on this I'm completely stuck.

hartnn (hartnn):

where are points C and D located on the number line ?

OpenStudy (buckybarnes):

C is -9 and D is 7

hartnn (hartnn):

good! so, CD = 7 - (-9) = ... ? (finding distane here is just subtracting the co-ordinates)

OpenStudy (buckybarnes):

I got 16

hartnn (hartnn):

yes, CD = 16, and we are given, CE/CD = 1/8 so, CE/16 = 1/8 can you get CE ?

OpenStudy (buckybarnes):

How would I do that?

hartnn (hartnn):

multiply 16 on both sides

hartnn (hartnn):

CE = 1/8 *16 = 16/8 = ...

OpenStudy (buckybarnes):

I got 2?

hartnn (hartnn):

yes, so C and E are just 2 units away! C is at -9, so where can E be? (so that it is 2 units away from -9)

OpenStudy (buckybarnes):

-7?

hartnn (hartnn):

correct :)

OpenStudy (buckybarnes):

So a?

hartnn (hartnn):

yes.

OpenStudy (buckybarnes):

Thank you so much you're amazing

hartnn (hartnn):

welcome ^_^ and you're a good learner!

OpenStudy (3mar):

Took my turn, hartnn ;) Really you are good. Thank you for that. Sorry, BuckyBarnes. I wasn't here.

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