03-02-2018
Mathematics

contestada

Gordon was thinking of a number. Gordon adds 9 to it, then doubles it and gets an answer of 77.9. What was the original number?

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Bryancohen Bryancohen

03-02-2018

Do it backwards. 77.9/2= 38.95. Subtract 9 to get 29.95. The original number is 29.95. This is a weird number so if the question says round, it would be 30. I hope this helps!

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