Best Answer

It means that when you look at something 20 feet away, you see it with the clarity that someone with good sight would see 40 feet away.

It means you need glasses.

Lvl 9

Study guides

☆☆

Q: What does 20 40 mean?

Write your answer...

Submit

Still have questions?

Related questions

20

I guess you mean: What number when you subtract 20, gives 40 as the answer?x - 20 = 40.Add 20 to both sides: x - 20 + 20 = 40 + 20x = 60

30

20

It means 20 minutes to the hour of 7, that is 6:40

"Of" means to multiply. For example, what is 40% of 20? 20*0.4 =8

27.33333333

With a mean score of 110 and a standard deviation of 18, what percentage of scores would be less than 155?

If you mean factors, they are 1, 2, 4, 5, 8, 10, 20, 40

40 - 20 percent = 820% of 40= 20% * 40= 20%/100% * 40= 8

20% of 40 is not greater than 40% of 20. The two are equal. 20% of 40 = 0.20 * 40 = 8 40% of 20 = 0.40 * 20 = 8

100 & 140. The two numbers are: the mean ± half the range. Half the range is 40/2 = 20. So the two numbers are: 120 - 20 = 100 120 + 20 = 140