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Mathematics
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OpenStudy (anonymous):
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OpenStudy (anonymous):
yea
OpenStudy (anonymous):
|dw:1426028903584:dw|
OpenStudy (anonymous):
A. n= -50 B N= -32 C. N= 32 D N=50
OpenStudy (anonymous):
where is n in the equation
OpenStudy (jdoe0001):
\(\large -\cfrac{5}{4}n=40\quad or\quad \cfrac{5}{4}n=40 ?\)
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OpenStudy (anonymous):
N is next to 5 - - N - 4
OpenStudy (anonymous):
The first one
OpenStudy (anonymous):
-32 that's the answer
OpenStudy (anonymous):
Did that help
OpenStudy (jdoe0001):
well.. you'd firstly multiply both sides by "4"
then
divide them by " -5 "
thus
\(\large {
-\cfrac{5}{4}n=40\implies \cfrac{-5}{4}n=40\quad {\color{brown}{ \times 4 }}
\\ \quad \\
{\color{brown}{ \cancel{4} }}\times \cfrac{-5}{\cancel{4}}n=40\times {\color{brown}{ 4 }}\implies -5n=160\qquad {\color{brown}{ \div -5 }}
\\ \quad \\
\cfrac{\cancel{-5}n}{\cancel{{\color{brown}{ -5}}}}=\cfrac{160}{{\color{brown}{ -5}}}
}\)
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