SOLUTION: A 250 pound person needs a dosage of 3 cc. How much does a 140 pound person need? Thanks! I need help. I am so confused.

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Question 454774: A 250 pound person needs a dosage of 3 cc. How much does a 140 pound person need?
Thanks! I need help. I am so confused.
Answer by rfer(16322) About Me  (Show Source):
You can put this solution on YOUR website!
3/250=x/140
3x=3*140
250x=420
x=1.68 cc
just work it as a ratio