Mathematics
9 Online
OpenStudy (anonymous):
Evaluate.
1 – 3 • 7 + 4 • 2
A.
–20
B.
–28
C.
–32
D.
–12
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OpenStudy (anonymous):
WAIT I THINK I KNOW THIS ONE
OpenStudy (anonymous):
u do to k12
OpenStudy (anonymous):
yah
OpenStudy (yolo_king):
remember first add then subtract and then multiply
OpenStudy (yolo_king):
What do you think is the answer?
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OpenStudy (anonymous):
lost it sorry i suck ( *_* )
OpenStudy (anonymous):
b?
OpenStudy (yolo_king):
Nope, but it is a negative.
OpenStudy (yolo_king):
Wait lol there all negative
OpenStudy (yolo_king):
Not B.
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OpenStudy (anonymous):
it really should say -28 but it didnt paste on correctly
OpenStudy (yolo_king):
7+4 = 11
OpenStudy (yolo_king):
1-11=-10
OpenStudy (anonymous):
so -10?
OpenStudy (yolo_king):
waity a minute .-. im doing it wrong
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OpenStudy (yolo_king):
Ok the answer is -12
OpenStudy (anonymous):
dont you have to go by PEMDAS
OpenStudy (yolo_king):
mhmmm...
OpenStudy (anonymous):
and i got -28
OpenStudy (yolo_king):
.-.
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OpenStudy (anonymous):
ohh okay thanks!
OpenStudy (yolo_king):
hmmmmm...
OpenStudy (yolo_king):
hold on
OpenStudy (yolo_king):
Lol I got it wrong Parentheses, Exponents, Multiplication, Division, Addition, Subtraction
OpenStudy (yolo_king):
I was mistaken
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OpenStudy (anonymous):
thats fine
OpenStudy (anonymous):
so witch is it?
OpenStudy (yolo_king):
Oh your right 1 – 3 • 7 + 4 • 2
3*7 = 21 and 4*2 = 8 So we got 1-21+8
21+8=29 So 1-29 = -28 >.<
OpenStudy (yolo_king):
You are right :P
OpenStudy (anonymous):
thanks lol
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OpenStudy (yolo_king):
:P thank you
OpenStudy (anonymous):
can you help with another?
OpenStudy (yolo_king):
Sure
OpenStudy (yolo_king):
Close the question and make a new post :) Don't forget to medal :D