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Mathematics 17 Online
OpenStudy (anonymous):

−np − 90 < 30 solve for n.

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 :')

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?

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

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

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

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