ilovelizah ilovelizah

02-12-2016
Mathematics

Answered

when a number is decreased by 10% of itself, the result is 171. what is the number?

Verified Answer :

bartdrinksmalk bartdrinksmalk

02-12-2016

For some number \(x\), we subtract \(0.1x\) and get 171.

So we have:
\(x-0.1x=171\)
\(\rightarrow 0.9x=171\)
\(\rightarrow x=190\)

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