SOLUTION: A class trip cost a total of d dollars, which is supposed to be divided equally amongst the s students in a class. If n students decided not to go on the trip and do not chip in fo

Algebra ->  Coordinate Systems and Linear Equations  -> Linear Equations and Systems Word Problems -> SOLUTION: A class trip cost a total of d dollars, which is supposed to be divided equally amongst the s students in a class. If n students decided not to go on the trip and do not chip in fo      Log On


   

Question 1141368: A class trip cost a total of d dollars, which is supposed to be divided equally amongst the s students in a class. If n students decided not to go on the trip and do not chip in for the expense of the trip, which of the following represents the additional amount, in dollars, that each of the remaining students must contribute to pay for the trip?
A) d/s—n
B) dn/s—n
C) d(s—n)/s
D) dn/ s(s—n)
Answer by ankor@dixie-net.com(22740) About Me  (Show Source):
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A class trip cost a total of d dollars, which is supposed to be divided equally amongst the s students in a class.
If n students decided not to go on the trip and do not chip in for the expense of the trip, which of the following represents the additional amount, in dollars, that each of the remaining students must contribute to pay for the trip?
:
d%2F%28%28s-n%29%29 - d%2Fs= additional amt each student has to pay
put fraction over a single denominator
%28ds+-+d%28s-n%29%29%2F%28s%28s-n%29%29
distribute d
%28ds+-+ds+%2B+dn%29%2F%28s%28s-n%29%29
ds drops out
%28dn%29%2F%28s%28s-n%29%29 which is D