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You start with a number. Double it. Square the answer. You get 400. What number did you start with?

You start with a number. Double it. Square the answer. You get 400. What number did you start with?
asked 121k views
5 votes
You start with a number. Double it. Square the answer. You get 400. What number did you start with?

asked
User BryceH
by
8.9k points

1 Answer

3 votes
10x2 = 20
20^2 = 400
So the answer is 10
answered
User Borowis
by
7.9k points
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