Question

What number could be added to 0.40 mL for the level of precision to be 0.01mL

Answer 1

Your answer is 0.39!!!!!!!!!!!!!!!

Answer 2

- 0.39

Explanation:

Level of precision = 0.01 mL

We need to find a number which could be added to 0.40 mL for the level of precision to be 0.01 mL .

Let x be a number which could be added to 0.40 mL for the level of precision to be 0.01 mL .

`x+0.40=0.01`

On subtracting 0.40 from both sides , we get

`x+0.40-0.40=0.01-0.40`

On solving , we get

`x+0=0.01-0.40`

We know that
`x+0=x=0+x` where 0 is the additive inverse .

So,

`x=0.01-0.40`

Here ,
`0.01-0.40=-0.39`

Therefore ,

`x=0.01-0.40=-0.39`

Therefore , -0.39 could be added to 0.40 mL for the level of precision to be 0.01mL