Mathematics
10 Online
OpenStudy (pixiedust1):
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OpenStudy (anonymous):
Do you know your order of operations?
OpenStudy (anonymous):
If so, just apply that.
OpenStudy (anonymous):
Alright. I presume 32(-5+1) is 32*(-5+1)?
OpenStudy (anonymous):
I just want to make sure I'm understanding that little bit right.
OpenStudy (anonymous):
In any event, you recall PEMDAS- First, parenthesis. (-5+1)=(-4).
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OpenStudy (anonymous):
No exponents, so you move on to multiplication: 32(-4), or -128.
OpenStudy (anonymous):
Then do -128/2, since division is next.
OpenStudy (anonymous):
Add 7.
OpenStudy (anonymous):
Hm...but that doesn't seem to fit any of the three answers you put up.
OpenStudy (anonymous):
That would come out to -57.
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OpenStudy (anonymous):
Are you sure there isn't any bit of the equation you're missing, on the next line?
Possibly an answer you didn't show?
OpenStudy (amistre64):
7 + 32 (-5 + 1) รท 2
7 + 32 (-5 + 1)/2
7 + 16 (-4)
OpenStudy (amistre64):
gotta love the encoder ...
OpenStudy (amistre64):
chk the question to make sure its posted correctly
OpenStudy (amistre64):
-(5+1) maybe?
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OpenStudy (anonymous):
Calculators suck at order of operations.
OpenStudy (amistre64):
try a screen shot instead of copy paste