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Is the attached math problem done correctly? Thanks!
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(Level 1) Associate Educator, Expert
The given is S = 180n - 360.
Based on your answer, you are trying to isolate n. In that case, you made a single mistake. You transposed 360 (or technically added 360 to both sides to eliminate -360 on the right side), but then you multiplied it on the other side.
S = 180n - 360
S + 360 = 180n - 360 + 360
S + 360 = 180n + 0
S + 360 = 180n
Dividing by 180 to isolate n is also the correct process, as you did (your only mistake was the transposition).
(S + 360)/180 = 180n/180
n = (S + 360)/180
which is the same as
n = (S/180) + 2
Posted by mvcdc on September 19, 2013 at 2:33 AM (Answer #1)
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