Noahal
Noahal Noahal
  • 31-03-2017
  • Mathematics
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Explain why a change from 20 to 40 is a 100 percent increase,but a change from 40 to 20 is a 50 percent decrease

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Аноним Аноним
  • 31-03-2017
40 = 2 times 20

20 = 40/2
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flynn705
flynn705 flynn705
  • 31-03-2017
You are multiplying all of 20 which is 100% and your dividing only half of 40 which is 50%
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