Answer:
392
Step-by-step explanation:
40% of 980 = 0.4 × 980 = 392
The difference in the widths, in meters, of the human hair and the piece of sand is
m.
It is given in the question that:-
Width of a human hair =
m
Width of a piece of sand =
m
We have to find the difference in the widths, in meters, of the human hair and the piece of sand.
We know that,
Difference between the widths = Width of a piece of sand - Width of a human hair
Hence, we can write,
Difference between the widths =
m -
m
We can write,

Hence,
Difference between the widths =
m
To learn more about Width, here:-
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Answer:
b
Step-by-step explanation:
thats funny i just did that
Answer:
The answer is option 1 and 3.
Step-by-step explanation:
Firstly, you have to find the simplest form of the ratio by dividing the common numbers :

Given that the simplest ratio is 5:8. Next, you have to simplify all the options given and which is equivalent to 5:8 :
Option 1,

Option 2,

Option 3,

Option 4,

Option 5,

I hope this helps you
5+1/3v=8-4
6/3v=4
2/v=4
v=2/4
v=1/2