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Answer:

Concept: Numerical Understanding

  1. First off its eight point five minus blank equals seven point fifteen
  2. The missing variable is a number that sums to 7.15
  3. Instinctively you could rearrange or see the value missing is 1.35
Pat100

Answer:2.15

Step-by-step explanation:

5-x=7.15

5-7.15=x

x=2.15

The blank space is 2.15

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