Mathematics
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OpenStudy (anonymous):
−np − 90 < 30 solve for n.
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OpenStudy (gabebae):
hello
OpenStudy (gabebae):
I'll help you solve it
OpenStudy (anonymous):
thank you
OpenStudy (anonymous):
btw i love good mythical morning lol
OpenStudy (gabebae):
same :')
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OpenStudy (gabebae):
First step you would need to get n by itself it to add 90 to the other side
OpenStudy (gabebae):
that would cancel the -90 on the left
OpenStudy (gabebae):
\[-np< 120\]
OpenStudy (anonymous):
thats it? Dont you have to get n by its self like n<?
OpenStudy (gabebae):
I know
do you know what to do next?
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OpenStudy (anonymous):
No. idk why im have troubles with this. could you show me the next step?
OpenStudy (gabebae):
Divide each side by p
\[-n< 120/p\]
but you're not done because the n is negative
OpenStudy (anonymous):
ohh ok so its going to be solved as an equation?
OpenStudy (gabebae):
yup but the n is negative we're not done :P
OpenStudy (gabebae):
there is a -1 next to the n but you don't see it
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OpenStudy (anonymous):
ok keep going
OpenStudy (gabebae):
did they teach you that if you divide you should flip the sign of the inequality?
OpenStudy (anonymous):
yes they did
OpenStudy (gabebae):
I'm sorry i'm trying to multitask here
OpenStudy (anonymous):
its fine i've got time
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OpenStudy (gabebae):
If you divide or multiple by a negative number you should flip the inequality sign
OpenStudy (gabebae):
since you're trying to get rid of the -1 in front of the n you would divide both sides by -1 and flip the inequality sign
OpenStudy (anonymous):
ok
OpenStudy (gabebae):
\[n > -120/p\]
there's your answer
OpenStudy (anonymous):
thank you so much