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08-03-2018
Mathematics

contestada

If you add 0.43 to a certain number then subtract 0.58 from the result and then another 4.04, you’ll get 30.3. What is the certain number?

Respuesta :

08-03-2018

(You just need to work backward.)

30.30 + 4.04 = 34.34 (Add instead of subtract)

34.34 + 0.58 = 34.92 (Add instead of subtract)

34.92 - 0.43 = 34.49 (Subtract instead of add)

Let's check:

34.49 + 0.43 = 34.92

34.92 - 0.58 = 34.34

34.34 - 4.04 = 30.3

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