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Mathematics 17 Online
OpenStudy (anonymous):

If the midpoint between (x, 7) and (10, 11) is (15, 9), find the value of x.

OpenStudy (anonymous):

My first answer is (20, 7) but its wrong.

OpenStudy (anonymous):

Use the midpoint formula :) |dw:1342985209916:dw|

OpenStudy (anonymous):

yeah I got that..

OpenStudy (anonymous):

@Trexy actually (20,7) is the first coordinate so the value of x is 20

OpenStudy (anonymous):

ooh... since i got the x, i can just do the midpoint right..?

OpenStudy (anonymous):

Yes...

OpenStudy (anonymous):

Since its asking for X, the answer will be 20?

OpenStudy (anonymous):

Yes your answer is right.. Read the question last line says find x..

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