Mathematics
8 Online
OpenStudy (anonymous):
Medal
Evaluate by using the Order of Operations
24 / 3^2/8-5 - (-5)
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jagr2713 (jagr2713):
can you put it in the equation box please
OpenStudy (anonymous):
i will try lol
OpenStudy (anonymous):
\[24 \div \frac{ 3^2 }{ 8-5 } - (-5)\]
jagr2713 (jagr2713):
Thanks
OpenStudy (anonymous):
your welcome
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jagr2713 (jagr2713):
Opp sorry gtg do something for 10mins let me ask someone who can help
@robtobey @Kainui @sleepyjess
OpenStudy (anonymous):
ok thank you
OpenStudy (sleepyjess):
hello! :)
First off, do you know the order of operations?
OpenStudy (anonymous):
bedmas
OpenStudy (sleepyjess):
PEMDAS
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OpenStudy (anonymous):
no bedmas
OpenStudy (sleepyjess):
what does each letter stand for?
OpenStudy (anonymous):
brackets exponents division multiply addition subtraction
OpenStudy (sleepyjess):
hmm... interesting
OpenStudy (sleepyjess):
are you in the US?
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OpenStudy (anonymous):
no i am in canada
OpenStudy (sleepyjess):
We use PEMDAS here
Parentheses
Exponents
Multiply
Divide
Addition
Subtraction
OpenStudy (sleepyjess):
But anyways, now that we got that cleared up, what is in brackets?
OpenStudy (anonymous):
Refer to the attachment from Mathematica v9.
OpenStudy (anonymous):
(-5)
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OpenStudy (sleepyjess):
yep, so - (-5) is the same as +5, so now we get \(24 \div \dfrac{ 3^2 }{ 8-5 } +5\)
OpenStudy (anonymous):
yes now exponents 3^2 = 9
OpenStudy (sleepyjess):
Yep, so now \(\sf 24 \div \dfrac 9{8-5} + 5\)
Then 8-5 on the bottom would leave 3
\(\sf 24 \div \dfrac 9{3} + 5\)
What do you think now?
OpenStudy (anonymous):
24/ 1 divide by 9/3 + 5
OpenStudy (sleepyjess):
What is 9/3?
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OpenStudy (anonymous):
3
OpenStudy (sleepyjess):
Yep, so 24/3 now
OpenStudy (anonymous):
8
OpenStudy (sleepyjess):
let's hope this goes through
8+5 = final answer
OpenStudy (anonymous):
13
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OpenStudy (sleepyjess):
yep :)
OpenStudy (anonymous):
so the answer is 13