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  • 01-12-2015
  • Mathematics
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How can I find 30% of 2140?

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Exvited
Exvited Exvited
  • 04-01-2016
30% of 2140 is 642

Convert percentage into a decimal: 30%/100 = 0.3
Multiply decimal by 2140: 0.3 × 2140 = 0.3 <-- our answer.

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TSO
TSO TSO
  • 04-01-2016
'is' in mathematics means equal
'of' in mathematics means multiplication

30% can also be written as 30/100

[tex]x = \frac{30}{100} \times 2140\\\\x = \frac{3}{10} \times 2140\\\\x = 3 \times 214\\\\\boxed{\bf{x=642}}[/tex]
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