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sian thinks of a number.
it's value is increased by 25%.

express the original number as a percentage of the increased number

will give brainliest

Respuesta :

Answer:

80%

Step-by-step explanation:

original: 1

Increase 25%: 1.25  if this number becomes 1

1 : 1.25 = x : 1

x = 1 / 1.25 = 0.8   (80%)

check: 0.8 x 1.25 = 1

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