Posted by Anonymous on Monday, November 28, 2011 at 6:29pm.
Add up the ratios 3:7:17 to get 27.
Since ratios can be scaled, we can scale the ratios to have a sum of 81 by multiplying the ratios by 3,i.e.
3:7:17 ≡ 9:21:51.
Can you take it from here?
no i need the answer please
Try to add up the three numbers 9,21 and 51 and see what you get.
You're welcome to confirm your answer if you are not sure.
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