bbb911
  • bbb911
For an average adult, the weight of the right lung is greater than the weight of the left lung. if the right lung weighs 1.5 pounds and the left lung weighs 1.25 pounds, find the difference in grams. Round the result to the nearest ten
Mathematics
katieb
  • katieb
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anonymous
  • anonymous
you are looking for a length measurement based off of a weight measurement?
anonymous
  • anonymous
exactly @dave0616 it cant be converted unless you have full question or something else
bbb911
  • bbb911
im confused a bit

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anonymous
  • anonymous
There is no correlation between a weight (1.5 lbs, or w.e the number was) and a length. There either needs to be more information, or you arent looking for millimeters
bbb911
  • bbb911
wait i see let me recorrect the question
bbb911
  • bbb911
tht should do it
anonymous
  • anonymous
that is definitely better. hahaha well in 1 pound there are 453.59 grams. so you will have to set up some conversion tables. \[1.5lb * \frac{ 453.59 g }{ 1 lb }\] the pounds will then cancel, and then you are left multiplying the 1.5 by 453.59, and the units will come out to be grams because that is the only thing left. you will simply have to do the same thing for the other lung.
anonymous
  • anonymous
@Best_Mathematician if you see an error in my math/method please clear it up, but i believe this is correct
bbb911
  • bbb911
okay and so what happens to the 1.25 pounds ?
anonymous
  • anonymous
they are two separate problems because you are only trying to convert them both to grams, or am i mistaken?
bbb911
  • bbb911
no their both included with that same problem
anonymous
  • anonymous
oh im sorry i didnt read the rest of the problem hahaha. I dont just want to give you the answer, but i will help you along. did you convert 1.5 lbs to grams?
bbb911
  • bbb911
its kk :)
bbb911
  • bbb911
no its okay i don't want you to i wanna be able to get cos i kept on messing up with this one kinda made me angry when i was soo freaken despreate to figure it out
anonymous
  • anonymous
ok i just always want to make that clear to people so that they dont get mad at me when i dont spit out an answer hahaha. ok, did you convert 1.5 lbs to grams?
bbb911
  • bbb911
i thought i had to multiply 1.5 by 1.25
bbb911
  • bbb911
then to convert it that way but that is where i am confused
anonymous
  • anonymous
nope, first what you are going to want to do is convert both lbs to grams because you are looking for the difference between the two in grams. which means you are subtracting the smaller one from the larger one. so bascially the 1.5 and 1.25 dont interact until after they are converted.
bbb911
  • bbb911
so do i subtract 1.5 to 1.25 right?
anonymous
  • anonymous
well that is another way to approach the problem to get the same answer, and you will only have to convert to grams once, so sure lets go about it that way. so you will subtract 1.25 from 1.5: 1.5-1.25 = .25lbs
anonymous
  • anonymous
do you understand up to this point?
bbb911
  • bbb911
yes okay now i convert .25 to grams right?
anonymous
  • anonymous
yes that is correct. let me know what you get so i can compare it to my answer
bbb911
  • bbb911
kk :) one sec
bbb911
  • bbb911
okay one quick question how many pounds in grams?
anonymous
  • anonymous
nope, other way around haha, if you look up a few posts, there are 453.59g in 1 lb. so you are going to set up the conversion table of: .\[.25lbs*\frac{ 453.59g }{ 1 lb }\] the lbs will cancel and you will only be left with g, so alll you do is multiply .25 by 453.59 g
bbb911
  • bbb911
okay forget the last part where it says to round to the nearest ten it wasn't necessary
bbb911
  • bbb911
okay i got 113.4
anonymous
  • anonymous
that is what i got as well so your answer should be correct! do you understand how to do it? or do you need me to explain why we did what we did?
bbb911
  • bbb911
i think i got it wrong
anonymous
  • anonymous
well if you got it wrong so did i hahaha, but im pretty sure you got it write
anonymous
  • anonymous
*right
bbb911
  • bbb911
cos the right answer says 112.5 g
bbb911
  • bbb911
yea lol i don't know how i would get that answer tho
anonymous
  • anonymous
hmmmmmm i honestly think the answer might be wrong because i got 113. 4 as well. and i did it two different ways.
bbb911
  • bbb911
maybe it might be a typo but ill have my professor take note of it maybe she could explain why it would be the other answer however thank you very much for helping thank a lot :)
anonymous
  • anonymous
i think that is what it is if i did it two ways, and you did it, and we got the same answer three times haha. no problem at all!
bbb911
  • bbb911
thanks :) lol

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