Math help

Decimal separators is my guess
20 centimeters and 2 tenths of a centimeter
7 seconds and 41 hundredths of a second.
https://docs.oracle.com/cd/E19455-01/806-0169/overview-9/index.html

>>362911
Take a picture that gives more context.

>>362916
I assumed that was a typo and he was referring to the ":" symbol. You'd be really retarded if you didn't know what decimals are, but that colon operator, I don't think I've seen it on any sort of homework/test/etc. before.

>>362917
>>362918
It wants me to solve it

>>362918
Aw fuck, I totally misread the question. It's a colon operator, mostly used to denote division, usually written as "÷"

>>362923
Thanks

>>362923
So the answer would be
>20.2 (cm) : 7,41 (s)
>~2,72 cm/s

>>362921
If I had to guess, you should just divide. So it's a mistyped/mis-printed ÷ ?

>>362927
Yeah seems correct, thanks

https://en.wikipedia.org/wiki/Division_(mathematics)

>In some non-English-speaking cultures, "a divided by b" is written a : b. This notation was introduced in 1631 by William Oughtred in his Clavis Mathematicae and later popularized by Gottfried Wilhelm Leibniz.[6] However, in English usage the colon is restricted to expressing the related concept of ratios (then "a is to b").

What's the fucking point of this?

>>362927
In some European countries people write/type division mark as :

>>362931
Wtf

I immediately thought it was the ratio of the two, which would essentially be the same as dividing it.

>>362923
what the hell happened to using the slash to denote division? 22/7?

>>362953
Because a 4:1 gear ratio is a fundamentally different concept than the rational number 1/4, despite having the same value.

>>362967
same problem with /

1/2 (one divided by 2, operation) = 1/2 (one half, a fraction)

and you can't distinguish between the two.

>>363058
They're the same thing.