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40/100=180/? The answer is 40*4.5/(100*4.5)=180/450.

I prefer: the number is 180/40%=180*100/40=180*5/2=90*5=450.
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asked Nov 19, 2015 in Pre-Algebra Answers by Mathical Level 10 User (57.4k points) | 845 views
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