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

- bbb911

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- anonymous

you are looking for a length measurement based off of a weight measurement?

- anonymous

exactly @dave0616 it cant be converted unless you have full question or something else

- bbb911

im confused a bit

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## More answers

- 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

wait i see let me recorrect the question

- bbb911

tht should do it

- 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

@Best_Mathematician if you see an error in my math/method please clear it up, but i believe this is correct

- bbb911

okay and so what happens to the 1.25 pounds ?

- anonymous

they are two separate problems because you are only trying to convert them both to grams, or am i mistaken?

- bbb911

no their both included with that same problem

- 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

its kk :)

- 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

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

i thought i had to multiply 1.5 by 1.25

- bbb911

then to convert it that way but that is where i am confused

- 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

so do i subtract 1.5 to 1.25 right?

- 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

do you understand up to this point?

- bbb911

yes okay now i convert .25 to grams right?

- anonymous

yes that is correct. let me know what you get so i can compare it to my answer

- bbb911

kk :) one sec

- bbb911

okay one quick question how many pounds in grams?

- 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

okay forget the last part where it says to round to the nearest ten it wasn't necessary

- bbb911

okay i got 113.4

- 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

i think i got it wrong

- anonymous

well if you got it wrong so did i hahaha, but im pretty sure you got it write

- anonymous

*right

- bbb911

cos the right answer says 112.5 g

- bbb911

yea lol i don't know how i would get that answer tho

- 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

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

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

thanks :) lol

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