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OpenStudy (anonymous):
What is the value of the expression –c + d when c = –3.5 and
d = –12.8?
A.
–9.3
B.
–16.3
C.
15.3
D.
16.3
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OpenStudy (anonymous):
B
OpenStudy (anonymous):
+3.5-12.8 = -9.3
OpenStudy (anonymous):
@Learner11 incorrect
OpenStudy (anonymous):
−3.5+−12.8= -16.3
OpenStudy (anonymous):
-c+d
=- (-3.5)+(-12.8)
=+3.5-12.8
= -9.3
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OpenStudy (anonymous):
@BlooooooBlahBLIIIIK ?
OpenStudy (anonymous):
substitute -3.5 for c and -12.8 for d then do the math thats all you have to do when they give substitution numbers in the question.
OpenStudy (anonymous):
am I right guys ?
OpenStudy (anonymous):
yes
OpenStudy (anonymous):
thanks . You can give me a medal :)
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OpenStudy (anonymous):
lol yeah :)
OpenStudy (anonymous):
Learner11 :P
OpenStudy (anonymous):
whats ur name
OpenStudy (anonymous):
I told :P
OpenStudy (anonymous):
cool u play 20 question
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OpenStudy (anonymous):
what?
OpenStudy (anonymous):
do u play the game 20 questions
OpenStudy (anonymous):
nope .
OpenStudy (anonymous):
actualy it is 16.3 i redid my math it is b
OpenStudy (anonymous):
But How ?
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OpenStudy (anonymous):
look if u substitute -3.5 for c and - 12.8 for d that would give u the equation -3.5+(-12.8 which =16.3 add it up in a calculator and you willl see
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