johnatha329 johnatha329

24-07-2018
Mathematics

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xusherripc9ed0 xusherripc9ed0

24-07-2018

We know that x + (70 - x) = 70.

So to find the product, we multiply x and (70 - x) so the answer would be the third one.

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lifelearner27 lifelearner27

24-07-2018

Px = x(70-x)
Because x + y = 70, so 70 - x = y
If 70 - x = y, then x(70-x) holds true

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