Mathematics
19 Online
OpenStudy (anonymous):
will medal and fan for help
Join the QuestionCove community and study together with friends!
Sign Up
OpenStudy (anonymous):
simplify the expression 55-4*5+12?
OpenStudy (studygurl14):
Use PEMDAS, aka order or operations, aka Please Excuse My Dear Aunt Sally
OpenStudy (studygurl14):
Parenthesis (none here)
exponent (none here)
multiplication and division (from left to right)
addition and subtraction (from left to right)
OpenStudy (studygurl14):
What's your first step?
OpenStudy (anonymous):
@sangya21
Join the QuestionCove community and study together with friends!
Sign Up
TheSmartOne (thesmartone):
Why tag him when @StudyGurl14 is helping you?
OpenStudy (anonymous):
because i already messaged him and he said he can help me
OpenStudy (anonymous):
subtract @StudyGurl14
OpenStudy (anonymous):
@sangya21 this does not make sense to me
OpenStudy (anonymous):
dude its her, not him. and
PEMDAS
go letter by letter.
then you will have M before S
means multiply before subtract
Join the QuestionCove community and study together with friends!
Sign Up
OpenStudy (anonymous):
ok thanks so do 55-4 then that answer times 5 that answer +12 correct
OpenStudy (studygurl14):
No...remember, multiplying is before subtracting.
OpenStudy (anonymous):
oh ok
OpenStudy (studygurl14):
so you would do 4 times 5 first
OpenStudy (studygurl14):
Which is...?
Join the QuestionCove community and study together with friends!
Sign Up
OpenStudy (anonymous):
ok then what
OpenStudy (studygurl14):
And then you just add/subtract from left to right.
OpenStudy (anonymous):
so 55-20 then that answer +12 @StudyGurl14
OpenStudy (anonymous):
55 -20+12. addition then subtraction
OpenStudy (anonymous):
so the answer is 47?
Join the QuestionCove community and study together with friends!
Sign Up
OpenStudy (studygurl14):
right. :)
OpenStudy (anonymous):
thanks @StudyGurl14
OpenStudy (studygurl14):
You're welcome