Mathematics
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OpenStudy (nadiahossain):
(5.6*10^6)-340,000/2*10^3
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OpenStudy (kayders1997):
This is kinda messy so is it (5.6×10^6)-340000/2×10^3?
OpenStudy (kayders1997):
Remember when you do this PEMDAS
OpenStudy (nadiahossain):
\[(5.6\times10^{6})-340,000\div2\times10^3\]
OpenStudy (kayders1997):
Thank you! So do you kbow where to start first?
OpenStudy (nadiahossain):
I did kinda solve and got 2.63*10^4 but I don't think its correct
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OpenStudy (kayders1997):
Think about PEMDAS what did you do first?
OpenStudy (nadiahossain):
parenthesis first
OpenStudy (kayders1997):
Yep and what part did you start with?
OpenStudy (nadiahossain):
5.6*10^6 which is 5600000
OpenStudy (kayders1997):
Yes good now?
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OpenStudy (nadiahossain):
ummm...I turned 2*10^3 into 200
OpenStudy (kayders1997):
Hmmmm?
OpenStudy (kayders1997):
PEMDAS exponents so you have to do the 10^3 first
OpenStudy (nadiahossain):
yeah and then multiply
OpenStudy (kayders1997):
Wouldn't that be 2000?
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OpenStudy (nadiahossain):
oh, my bad
OpenStudy (kayders1997):
And you can't do that step first because when your doing multiplication/division you have to do left to right
OpenStudy (kayders1997):
So you would just have to leave it 1,000
OpenStudy (nadiahossain):
ok, then
OpenStudy (kayders1997):
Now what?
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OpenStudy (nadiahossain):
divide?
OpenStudy (kayders1997):
Yes
OpenStudy (nadiahossain):
but how?
OpenStudy (kayders1997):
Because you have your 340,000/2
OpenStudy (nadiahossain):
what about 5.6?
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OpenStudy (nadiahossain):
where does that go?
OpenStudy (kayders1997):
Didn't we do that part already? Because subtraction is the last step we can't do it till we get the multiplaction and division done
OpenStudy (nadiahossain):
oh ok
OpenStudy (kayders1997):
So your division would be?
OpenStudy (nadiahossain):
170?
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OpenStudy (kayders1997):
170,000 dont forget the extra zeros and now you have to?
OpenStudy (nadiahossain):
I got 170 only by dividing it
OpenStudy (kayders1997):
340,000/2?
OpenStudy (nadiahossain):
you mean 2,000
OpenStudy (kayders1997):
What?
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OpenStudy (kayders1997):
Right now we have 5,600,000-340,000/2×1000
OpenStudy (nadiahossain):
oh ok
OpenStudy (kayders1997):
Do you understand why?
OpenStudy (nadiahossain):
noo
OpenStudy (kayders1997):
Okay so you understand the parenthesis right?
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OpenStudy (nadiahossain):
yeah
OpenStudy (kayders1997):
Good so we got done with the P for peMDAS next step any exponents? Yes 10^3=1000 understand?
OpenStudy (nadiahossain):
yep
OpenStudy (nadiahossain):
then?
OpenStudy (kayders1997):
Okay so we have 5,600,000-340,000/2×1000 now we have to do the multiplaction and division from left to right
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OpenStudy (nadiahossain):
ok
OpenStudy (kayders1997):
Does this make sense why you cant do 2×1000 than?
OpenStudy (nadiahossain):
yep
OpenStudy (kayders1997):
So you have to do the division first so you get?
OpenStudy (nadiahossain):
170,000
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OpenStudy (kayders1997):
Yes now you have to?
OpenStudy (nadiahossain):
multiply??
OpenStudy (kayders1997):
Yes!
OpenStudy (kayders1997):
So you will get?
OpenStudy (nadiahossain):
2,000?
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OpenStudy (kayders1997):
Hmmmm?
OpenStudy (kayders1997):
What did you multiply together?
OpenStudy (nadiahossain):
2*1000
OpenStudy (kayders1997):
We got rid of the 2
OpenStudy (nadiahossain):
Can you draw like the problems with steps
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OpenStudy (kayders1997):
When we divided
OpenStudy (kayders1997):
Sure can hyou just wait a second gotta get on computer
OpenStudy (nadiahossain):
ok
OpenStudy (nadiahossain):
Thank you so much for the help
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OpenStudy (kayders1997):
nO problem :)
OpenStudy (nadiahossain):
:)
OpenStudy (kayders1997):
:D