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OpenStudy (anonymous):
http://prntscr.com/5h3a2p
@iGreen @perl
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OpenStudy (igreen):
13 / 8.45 will give you cost per
OpenStudy (igreen):
cost per copy*
Then multiply that by 27.
OpenStudy (perl):
Let y = cost, x = # copies
you can use the model
y = k*x
OpenStudy (anonymous):
The answer is 41.53? @iGreen
OpenStudy (anonymous):
@perl
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OpenStudy (igreen):
I get that too..but it doesn't seem right.
What do you think? @perl
OpenStudy (igreen):
Lol, nevermind.
OpenStudy (anonymous):
It doesn't look right to me neither.
OpenStudy (perl):
lets do it this way
OpenStudy (igreen):
13 doubled is 26..which is close to 27.
8.45 * 2 = 16.9
So the cost of 26 copies is 16.9..27 should just be a little more, right?
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OpenStudy (perl):
it costs $8.45 / 13 per copy or $0.65 per copy. Now multiply that by the number of copies
OpenStudy (igreen):
Ohh! That sounds right..we divided the wrong way..lol.
OpenStudy (perl):
right :)
OpenStudy (anonymous):
Wait what...
OpenStudy (perl):
the cost per copy should have been
$8.45 / 13
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OpenStudy (perl):
The equation we are using is
( cost per copy ) * # copies = total cost
OpenStudy (anonymous):
So 17.55? @perl
OpenStudy (perl):
yes
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