Which points are 17 units from the point located at 46 on a number line?
A.
29 and 63
B.
-29 and 29
C.
-29 and 63
D.
-63 and 63
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OpenStudy (secret-ninja):
Well, if the points are either 17 points in front or behind, you can either look at a number line:|dw:1417529346136:dw| Or just add 17 then subtract it.
OpenStudy (secret-ninja):
What is 46 minus 17?
OpenStudy (anonymous):
29
OpenStudy (solomonzelman):
well, it is definitely true that none of the values are negative, right?
OpenStudy (solomonzelman):
ignore me
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OpenStudy (secret-ninja):
Exactly. :) So since its a positive 29, D is (obviously) canceled out, and B and C are too.
OpenStudy (secret-ninja):
What is 46 plus 17?
OpenStudy (secret-ninja):
Its positive 63, right? So now you are 100% sure that A is your answer. :)
OpenStudy (anonymous):
Thanks ;D
OpenStudy (secret-ninja):
No problem, and congrats on turning to 50 smart score! :D
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