celinegirl
  • celinegirl
Math Question: Solve −np − 80 < 60 for n.
Mathematics
  • Stacey Warren - Expert brainly.com
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SOLVED
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schrodinger
  • schrodinger
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celinegirl
  • celinegirl
anyone? :( need help.
anonymous
  • anonymous
where are you stuck?
celinegirl
  • celinegirl
@peachpi just the whole problem I don't understand.

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More answers

anonymous
  • anonymous
you're trying to get n by itself. Think reverse PEMDAS. The first thing you have to do is move the 80 to the other side. the 80 is subtracted, so to move it you need to ADD 80 to both sides of the inequality
celinegirl
  • celinegirl
Oh! Okay I understand the reverse part, but I never really understood where you have to add the number to both sides of the inequality.
celinegirl
  • celinegirl
@peachpi sorry forgot to tag you
anonymous
  • anonymous
when you add, the 80 on the left will cancel. On the right, what's 60 + 80
celinegirl
  • celinegirl
@peachpi 140
anonymous
  • anonymous
right. show me what your inequality looks like now. I just want to make sure we're on the same page
celinegirl
  • celinegirl
@peachpi wait im still confused
anonymous
  • anonymous
we added 80 to both sides|dw:1444403350937:dw|
anonymous
  • anonymous
now you should have this|dw:1444403417956:dw|
celinegirl
  • celinegirl
@peachpi ah okay! I understand now!
anonymous
  • anonymous
so now divide both side by \(-p\), and flip the \(<\) sign to \(>\) since you're dividing by a negative
anonymous
  • anonymous
|dw:1444403666243:dw|
anonymous
  • anonymous
\[n>-\frac{ 140 }{ p }\]
celinegirl
  • celinegirl
@peachpi Oh okay! I get it. what would the answer be?
anonymous
  • anonymous
that is the answer
celinegirl
  • celinegirl
@peachpi oh lol. I thought it would of just been a single number. As you can tell im not very good at math. Thank you so much for your help!(:
anonymous
  • anonymous
you're welcome

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