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ExtremeBDS [4]
3 years ago
11

3 is 15% of what number

Mathematics
2 answers:
ipn [44]3 years ago
8 0
'of' means multiply
percent mean partss out of 100 so x%=x/100

translate

3 is 15% of what
3=15/100 times what
3=0.15 times what
divide both sides by 0.15
20=what

the answer is 20
vazorg [7]3 years ago
6 0
Use the rule of 3 simple 

x mean 100%
3 mean 15%
-------------------
 x = 3*100/15 = 300/15 = 20

hope this will help you 
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_____

I think of GCF and LCM problems in terms of a "diagram" that looks like this:

  (a [ b ) c ]

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2 years ago
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