320.17 - (6101.4/1.8)

- anonymous

320.17 - (6101.4/1.8)

- schrodinger

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- anonymous

Answer in proper significant figures.

- anonymous

ive tried to answer this four times and missed it all 4 times

- anonymous

missing something i guess

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## More answers

- anonymous

yes i understand that

- anonymous

i know when i multiply I take the smallest amount of sig fig

- anonymous

and when i add or subtract i take the number of least certainty in common

- anonymous

its when i do both im getting confused

- anonymous

i assume i do the parenthesis first

- anonymous

which comes out to 3389.67

- anonymous

do i round that to two sig figs or subtract first?

- anonymous

so the first answer is 3400

- anonymous

then i take 302.17 - 3400

- anonymous

-3097.83 or 3098 in sig fig

- anonymous

well its supposed to be 320.17

- anonymous

so -3079.83 which would be 3080 in sig fig?

- anonymous

which i tried that answer and it marked me wrong >.<

- anonymous

Submitted Answers
ANSWER 1: Deduction: -3%
320.17 - (6101.4/1.8) =
-3069.50
ANSWER 2: Deduction: -3%
320.17 - (6101.4/1.8) =
-3079.83
ANSWER 3: Deduction: -3%
320.17 - (6101.4/1.8) =
-3080
ANSWER 4: Deduction: -3%
320.17 - (6101.4/1.8) =
-3070

- anonymous

yes but when you subtract dont you take the last significant decimal place to them both?

- anonymous

could you show me how you would solve this so i may understand?

- anonymous

i swear to you im not trying to get anyone to do my homework, but this is frustrating me and i have two more attempts >.<

- anonymous

yes i understand that

- anonymous

but here i divide first

- anonymous

which gives me two sig figs

- anonymous

33.89.67 = 3400 right?

- anonymous

3389.67 oops

- anonymous

then i take 320.17 and subtract 3400

- anonymous

since 3400 has no decimal spots i round to the nearest 1 spot

- anonymous

and that how i got 3080

- anonymous

oh so the two sig figs i get when dividing applies still after i subtract?

- anonymous

for some reason i thought when i rounded to 3400 i was done with the division part

- anonymous

but 3400 is ambiguous huh

- anonymous

still 2 figs

- anonymous

would it be 3100 or -3100?

- anonymous

you are my hero, thanks a lot!

- anonymous

most certainly did

- anonymous

now i have to do the other three parts of the question but at least I understand a little more

- anonymous

well i understand mult/div and add/subt.... a little confused when they use both together

- anonymous

my book sucks at explaining! and thanks for the pdf

- anonymous

well its a custom made book for my college made by pearson

- anonymous

Just says Chem 121 College of Southern Nevada

- anonymous

first solve the bracket and then do subtraction and finnaly the rules of significant.

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