hello my name is emily im in high-school im a freshmen and i have a few questions to do on inequalities with one variable do you guys think you could help?
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OpenStudy (rock_mit182):
sure
OpenStudy (andijo76):
\[9X \le27\]
OpenStudy (calculusxy):
This is the same thing as solving for the variable by itself. You are practically solying for 9x=27. What will x equal to?
OpenStudy (calculusxy):
*solving
OpenStudy (andijo76):
0.33 repatend?
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OpenStudy (calculusxy):
Are you sure? 9 times what will equal to 27?
OpenStudy (andijo76):
oh um 243
OpenStudy (calculusxy):
So you are saying that 9 times 243 equals to 27?
OpenStudy (andijo76):
no 9 times 27 equals 243
OpenStudy (andijo76):
9 times 3 is 27
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OpenStudy (calculusxy):
Yes so x=3.
OpenStudy (calculusxy):
Now you have just excluded the 9 making x only be by itself. You now want to carry down the x, the inequality symbol, and 3 because we know that 9(3)=27.
That should have you get:
9 is less than or equal to 27
OpenStudy (andijo76):
less than
OpenStudy (calculusxy):
No. Less than or equal to (in this case ) because if the little dash underneath the less than symbol.
OpenStudy (andijo76):
oh its equal to isnt it?
because you have to do the 9(3) wich equals to 27 so 27=27