Questions on Algebra: Proportions answered by real tutors!

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Question 150682This question is from textbook elementary and intermediate algebra
: what is the image distance i for an object that is 2,000,000 mm, from a 250mm telephoto lense , if the formula for the focal length F for a camera lens is: l
over f= l over o + l over i. (f= focal, o= objec, i= image) This question is from textbook elementary and intermediate algebra
: what is the image distance i for an object that is 2,000,000 mm, from a 250mm telephoto lense , if the formula for the focal length F for a camera lens is: l
over f= l over o + l over i. (f= focal, o= objec, i= image)
Answer by Fombitz(1741) About Me  (Show Source):
You can put this solution on YOUR website!
1/f=1/o+1/i
1/250=1/2000000+1/i
1/250-1/2000000=1/i
8000/2000000-1/2000000=1/i
7999/2000000=1/i
i=2000000/7999
i=2000000/7999
i=250.03
The image distance is 250.03 mm.