SOLUTION: d/550 + 2900-d/600 = 5 I am having trouble getting a LCD. I know that distance is 1100, but I dont know how to make it come out right

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Question 380514: d/550 + 2900-d/600 = 5
I am having trouble getting a LCD. I know that distance is 1100, but I dont know how to make it come out right
Answer by mananth(16949) About Me  (Show Source):
You can put this solution on YOUR website!
d/550 + (2900-d)/600 = 5
multiply by 50
50d/550 + (2900-d)*50/600 = 5*50
..
d/11 +(2990-d)/12= 250
...
LCD = 132
(12d+11(2900-d))/132=250
12d+31900-11d=132*250
d=132*250-31900
d= 1,100
...
m.ananth@hotmail.ca