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Alisiya [41]
3 years ago
15

When a number is decreased by 20% of itself, the result is 128. what is the number?

Mathematics
1 answer:
andriy [413]3 years ago
4 0
The number was 160 because 5/4•128=160. 5/4 represents inverting 80% and multiplying it by the number to determine how the result became 128. For checking over all you have to do is do 4/5 or 80%•160 which shall give you 128.
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