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

Answer:

- 0.39

Step-by-step 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