Mathematics
10 Online
OpenStudy (anonymous):
Evaluate.
(16 + 32 ÷ 4)(21 – 6 • 3)
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OpenStudy (xapproachesinfinity):
when you this sort of operation: you give priority the multiplication first then come division and later addiction and subtraction.
OpenStudy (anonymous):
@ManImStumped
OpenStudy (itsbribro):
use PEMDAS
OpenStudy (anonymous):
?
OpenStudy (itsbribro):
Perenthases
Exponent
Multiplication
Division
Addition
Subtraction
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OpenStudy (xapproachesinfinity):
is just order of operation what comes first
as i explained it above
but in you case you have exponent
and you don't need to care about parenthesis
OpenStudy (xapproachesinfinity):
read my reply and try to do what i said okay
OpenStudy (itsbribro):
do you want me to work it out with you?
OpenStudy (itsbribro):
@m&m&m
OpenStudy (anonymous):
ya I don't get it
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OpenStudy (itsbribro):
okay so your question is
\[(16+32\div4)(21-6\times3)\]
OpenStudy (anonymous):
so 6*3 first right?
OpenStudy (itsbribro):
yes
OpenStudy (anonymous):
18
OpenStudy (itsbribro):
\[(16+32\div4)(21-18)\]
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OpenStudy (itsbribro):
right
OpenStudy (itsbribro):
what next?
OpenStudy (anonymous):
21-8
OpenStudy (itsbribro):
nooo we would to multiplication and division first
OpenStudy (anonymous):
32/4?
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OpenStudy (itsbribro):
yes
OpenStudy (itsbribro):
\[(16+8)(21-18)\]
OpenStudy (anonymous):
(24) (13)
OpenStudy (itsbribro):
21-18=
OpenStudy (itsbribro):
you have 21 candy bars and you eat 18 how many do you have left?
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OpenStudy (anonymous):
16+8=24 21-18=13
OpenStudy (itsbribro):
16+8=24 yesss
OpenStudy (itsbribro):
21-18 does not =13
OpenStudy (anonymous):
oops 3
OpenStudy (itsbribro):
yeah u got it now you have
(24)(3)
you can drop the parenthases and add a multiplication sign
24 x 3
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OpenStudy (itsbribro):
whats 24 x 3?
OpenStudy (anonymous):
72
thank you
OpenStudy (itsbribro):
your welcome :)
OpenStudy (itsbribro):
do you need anymore help?