Mathematics
8 Online
OpenStudy (asad786):
need help
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OpenStudy (asad786):
@AlexandervonHumboldt2
OpenStudy (anonymous):
Do you feel like multiplying both sides by -5?
OpenStudy (anonymous):
And don't forget to change inequality direction when multiplying with a negative number
OpenStudy (asad786):
still need help
OpenStudy (anonymous):
How far have you gotten?
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OpenStudy (asad786):
how do you multiply with thhe fraction i need to get t
OpenStudy (alexandervonhumboldt2):
multiply both sides by 5 and then flip the sign to get t>=?
OpenStudy (alexandervonhumboldt2):
as we divide by negative, we flip the sign
OpenStudy (alexandervonhumboldt2):
woops i meant t<=
OpenStudy (asad786):
t
--
5 how do you multiply it
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OpenStudy (anonymous):
t
- -- * 5 = - t
5
OpenStudy (anonymous):
That was left side, so you also have to do the exact same thing on right side to even it out.
OpenStudy (asad786):
-75
OpenStudy (anonymous):
-t/5 >= 15
-t/5 * 5 >= 15 * 5
-t >= 75
Can you solve it from here?
OpenStudy (asad786):
so b
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OpenStudy (anonymous):
Does this
-t >= 75
look like B?
OpenStudy (asad786):
kind of
OpenStudy (anonymous):
Kind of isn't right :D You need exactly
OpenStudy (anonymous):
The next step is to multiply both sides by -1, then you would get t <= 75.
Notice the direction of inequality changed!
OpenStudy (asad786):
so a
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OpenStudy (anonymous):
Oops, that should have been t <= -75 there, yeah that's exactly A
OpenStudy (asad786):
thx
OpenStudy (anonymous):
You get the steps?
OpenStudy (asad786):
can you help me with two more
OpenStudy (anonymous):
I haven't the time I'm afraid. Others will probably help you C:
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OpenStudy (asad786):
ok thx any way ill fan