Question

I DONT KNOW AHHHHHH

`0.399 + w = 0.4`
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Answer 1

`\sf \: w = 0.001`

Explanation:

Now we have to,

→ find the required value of w.

The equation is,

→ 0.399 + w = 0.4

Then the value of w will be,

→ 0.399 + w = 0.4

→ w = 0.4 - 0.399

→ [ w = 0.001 ]

Hence, the answer is 0.001.