bakonloverk
can some one plz explain how 2 solve proportion plz?
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AriPotta
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can you tell me the question you're on? and i'll explain while we work it out :)
bakonloverk
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well i dont have a question tht uses proportions yet but i just need 2 know how 2 solve them
AriPotta
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you should be using cross multiplication to solve them
bakonloverk
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example plz
AriPotta
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lol i need an example problem
bakonloverk
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here hold on
AriPotta
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mmk
bakonloverk
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Hadria bought a storage trunk to place at the end of her bed that has a volume of 4.5 cubic feet. What is the volume of the storage trunk in cubic inches?
bakonloverk
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thts the problem im on
AriPotta
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4.5ft x (12in/1ft)
AriPotta
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basically just multiply 4.5 and 12
bakonloverk
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54
AriPotta
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yep. so 54 cubic inches
bakonloverk
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omg thank you so much
AriPotta
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no problem :)
AriPotta
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that wasn't cross multiplication btw
bakonloverk
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oh ok
AriPotta
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1ft = 12in. that's why i put 12in/1ft
bakonloverk
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ohhhhhh
AriPotta
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if you were trying to find how many feet it was, it would be 54in x (1ft/12in)
bakonloverk
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ohhhh ok tht makes sense
AriPotta
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there's a specif name for this kinda setup, i just forgot what it was lol
AriPotta
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specific*
bakonloverk
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wait it said tht 54 was wrong
AriPotta
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wat
bakonloverk
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the thing im using says tht 54 isnt the answer
AriPotta
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it hsould be...
AriPotta
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should*
bakonloverk
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its either
648
7776
or 3888
AriPotta
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oooh i set it up wrong. lawls.
bakonloverk
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lol
AriPotta
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4.5ft^3 x (12in/1ft)^3
AriPotta
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so you have to cube 12 first, then multiply that by 4.5
bakonloverk
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omg thts so many numbers
bakonloverk
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so its 7776
AriPotta
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wait
AriPotta
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yea
bakonloverk
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kk thank you
AriPotta
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and the setup is called dimensional analysis.
Dimensional Analysis: A problem-solving method used in physics, chemistry, engineering, and mathematics that is based on treating units in calculations as algebraic factors or fractions.
AriPotta
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you should look it up, because it helps me loads :)
bakonloverk
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ok thank you so much
AriPotta
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no problem :)