anonymous
  • anonymous
Solve the compound inequality 9 + 3n 6 or 5n < 25.
Mathematics
  • Stacey Warren - Expert brainly.com
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SOLVED
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jamiebookeater
  • jamiebookeater
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anonymous
  • anonymous
9 + 3n greater or equal to 6 or 5n < 25.
anonymous
  • anonymous
can you simplify them?
anonymous
  • anonymous
idk how to

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More answers

anonymous
  • anonymous
pretend they are equalities, can you simplify 9 + 3n = 6 ?
anonymous
  • anonymous
12n=6??
anonymous
  • anonymous
add -9 to both sides
anonymous
  • anonymous
oh you should of said like an equation.
anonymous
  • anonymous
15
anonymous
  • anonymous
3n=15
anonymous
  • anonymous
watch the sign (-) 9 + 3n = 6 so add (-9) to both sides
anonymous
  • anonymous
3n=6 - 9
anonymous
  • anonymous
yes, thats it... now what is 6 - 9 ?
anonymous
  • anonymous
-3
anonymous
  • anonymous
yes, so 3n = -3 and when you divide both sides by 3 what do you get?
anonymous
  • anonymous
n=-1
anonymous
  • anonymous
great, now that first equation makes sense... n >= 1 so let's work on the second one 5n < 25 any ideas?
anonymous
  • anonymous
pretend the < is an = for this part
anonymous
  • anonymous
n=5
anonymous
  • anonymous
exactly!!! and that is how you handle these... but be careful if you divide by a negative
anonymous
  • anonymous
when you divide both sides by a negative number, you switch the sign
anonymous
  • anonymous
but we didnt have to do that here.... so we have n >= 1 and n < 5
anonymous
  • anonymous
ok thank you so much give me a medal plzz
anonymous
  • anonymous
and that's all there is to it (unless you have to graph it or something

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