SaharaAsad8 SaharaAsad8
  • 12-11-2020
  • Mathematics
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What is 31; can vary by 7% ?

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sqdancefan
sqdancefan sqdancefan
  • 13-11-2020

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Answer:

  28.83 ≤ x ≤ 33.17

Step-by-step explanation:

7% of 31 is ...

  0.07 × 31 = 2.17

When we say the value can vary from 31 by 7%, we usually mean it can go that much lower or higher. For some value x, this means ...

  31 -2.17 ≤ x ≤ 31 +2.17

  28.83 ≤ x ≤ 33.17

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