I have math question, I'm trying to get better at it

No it's not for school work but I'm looking at bulk items on Amazon, I want to know and learn how to get the uni price.
I used to be good in math but it's been awhile.
For example, there's these fidget popper keychains I am looking at.
If there's 80 pieces of the fidget toys and the whole thing costs $11.99, what would the unit price be?
This might be simple math but I just want to learn it again.

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SomeMichGuy · M Best Comment

Units (in general) tell you how to calculate simple things.

The "unit price" is the "price per unit"..."per" is represented in units by division (the slash, "/").

So you want $/item; retailers might say "per each", which is a generic term (instead of "per orange", "per dress", etc.).

If you have $x for y items, you have

$x/(y items) = ($x/y)/item

If you had $100 for 20 items, you'd have $5/item, right?

$100/(20 items) = $(100/20)/item = $5/item.

[You can also think about it as a ratio:

if $x gets you y items
the $z gets you 1 item where

($x : y) :: ($z : 1)

or $x/y = $z/1 so z = $x/y (same as before).]

For YOU,

$11.99/(80 pieces) = ($11.99/80)/piece

or just under $0.15/piece.

SomeMichGuy · M

@Itsjustbrit Hey, thanks!

Itsjustbrit · 26-30, F

@SomeMichGuy oh I didn't even realize it was you that commented this! No problem!

bookerdana · M

Change 11.99 to twelve: 12,00/80-=.15 cents ...~

GJOFJ3 · 61-69, M

.15 each. 11.99 divided by 80

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