Mathematics
7 Online
OpenStudy (anonymous):
Evaluate 48 + 24 ÷ 8 - 22.
A.) 47
B.) 51
C.)55
D.)64
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OpenStudy (candy13106):
use the oorder of operations
OpenStudy (anonymous):
doesn't anyone own a calculator?
OpenStudy (candy13106):
meh
OpenStudy (anonymous):
So it is 47
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undeadknight26 (undeadknight26):
Satellite first thing i tried gave me 29 which is not an answer choice.
OpenStudy (candy13106):
same here undeadknight26
OpenStudy (candy13106):
i got 29
OpenStudy (anonymous):
it is no 22 it 2 with 2 square
undeadknight26 (undeadknight26):
so:
2^2?
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OpenStudy (anonymous):
yes
undeadknight26 (undeadknight26):
ahh ok:
48 + 24/8 - 4
undeadknight26 (undeadknight26):
Spoiler: you were right it is 47.
Work: 48 + 24/8 - 4
48 + 3 - 4
51 - 4 = 47
OpenStudy (anonymous):
can you help with another
undeadknight26 (undeadknight26):
sure sure shoot.
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OpenStudy (anonymous):
Evaluate 8 - 12 ÷ 2 + 3.
A.) 1
B.) -1
C.) 4
D.) 5
undeadknight26 (undeadknight26):
What do you think it is?
OpenStudy (anonymous):
Evaluate -12(-2).
A.) 14
B.) -14
C.) -24
D.) 24
undeadknight26 (undeadknight26):
1 at a time please thanks :D
OpenStudy (anonymous):
A
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undeadknight26 (undeadknight26):
First one is 24:
8 - 12 ÷ 2 + 3.
8 - 6 + 3
8 - 9 = -1
undeadknight26 (undeadknight26):
oh sorry not 24 its -1
OpenStudy (anonymous):
Ok
undeadknight26 (undeadknight26):
Im assuming its 12^-2?
Or is it 12 x -2?
OpenStudy (anonymous):
-12(-2)
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undeadknight26 (undeadknight26):
ok so
its 12 x -2....Are you allowed to use a calculator?
OpenStudy (anonymous):
yes
undeadknight26 (undeadknight26):
What is it then?
OpenStudy (anonymous):
the negative two has ( )
OpenStudy (anonymous):
so i don't no what to do
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OpenStudy (anonymous):
is it -24 or -14
undeadknight26 (undeadknight26):
well thats just to make sure you don't subtract em. Its to keep the confusion out of it. When a number is like this:
2(4) its multiplication.
OpenStudy (anonymous):
24=13
undeadknight26 (undeadknight26):
o.o whats that mean?