Mathematics
8 Online
OpenStudy (anonymous):
10/x)-5 over 5
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OpenStudy (lgbasallote):
rewrite as 1/5(10/x -5)
can you see it now?
OpenStudy (anonymous):
MM6, what?
OpenStudy (anonymous):
its 10x-5 over 5
OpenStudy (phi):
think of when you add fractions with a common denominator
1/4 + 2/4 = (1+2)/4
here, do the opposite change (1+2)/4 back to 1/4 + 2/4
OpenStudy (anonymous):
1 over x?
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OpenStudy (anonymous):
is that the answer
OpenStudy (phi):
is the problem
\[ \frac{10x-5}{5} \]
OpenStudy (phi):
?
OpenStudy (anonymous):
yea
OpenStudy (anonymous):
nooo
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OpenStudy (phi):
can you break it up into 2 fractions?
OpenStudy (anonymous):
ima type in plain words
OpenStudy (phi):
do the opposite change (1+2)/4 back to 1/4 + 2/4
OpenStudy (anonymous):
ten over x subtract 5 divided by 5
OpenStudy (phi):
you mean
\[ \frac{\frac{10}{x} -5}{5} \]?
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OpenStudy (anonymous):
yea
OpenStudy (phi):
if you multiply the top and bottom by 1/5 what do you get?
OpenStudy (phi):
do the bottom first: (1/5)*5=?
OpenStudy (anonymous):
i just need the final answer its either 2-x/x or 1/x or 1 or 2
OpenStudy (anonymous):
sorry im going to be late for school and dont have time to work it out
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OpenStudy (phi):
you don't know how to multiply (1/5)*5 ?
OpenStudy (anonymous):
no....
OpenStudy (phi):
\[ \frac{1}{5}\cdot \frac{5}{1} \]
multiply top times top, and bottom by bottom
OpenStudy (anonymous):
5 over 5 equals 1
OpenStudy (anonymous):
i really need the answer asap
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OpenStudy (phi):
now do the top:
\[ \frac{1}{5}(\frac{10}{x}-5) \]
OpenStudy (anonymous):
i dont have time
OpenStudy (phi):
you multiply 1/5 times each term in the parentheses
OpenStudy (anonymous):
I have to walk out the door in 30 seconds whats the answer
OpenStudy (phi):
you don't know how to multiply (1/5)*(10/x)?
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OpenStudy (anonymous):
you know what
OpenStudy (anonymous):
flutter you
OpenStudy (anonymous):
ur a pussy
OpenStudy (anonymous):
go to hell