anonymous
  • anonymous
HELP IT'S REALLY EASY The profit depends on the amount x that you charge for a box. The equation p= -0.5x^2 + 25x - 150 models the profit. What's the smallest amount that can be charged to make a profit of at least $125?
Mathematics
jamiebookeater
  • jamiebookeater
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anonymous
  • anonymous
anonymous
  • anonymous
anonymous
  • anonymous

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anonymous
  • anonymous
CMON @Joshyface YOU WERE TYPING I HELPED YOU LOL please
anonymous
  • anonymous
anonymous
  • anonymous
@BradNasty come on please
anonymous
  • anonymous
THANK YOU. cmon someone help
anonymous
  • anonymous
@jim_thompson5910 I KNOW UR ON
inkyvoyd
  • inkyvoyd
p= -0.5x^2 + 25x - 150 seek smallest value of x such that p>=125 does that make sense?
anonymous
  • anonymous
noo :(
inkyvoyd
  • inkyvoyd
You want -0.5x^2 + 25x - 150 >=125. Solve the quadratic inequality and eliminate extraneous solutions.
anonymous
  • anonymous
lemme try and do it WAIT HERE lol
Firejay5
  • Firejay5
16 = $122
Firejay5
  • Firejay5
I am not for sure if it's right though
anonymous
  • anonymous
okay so did you factor it?
Firejay5
  • Firejay5
me, no I type it into my graphing calculator and that's what I got
inkyvoyd
  • inkyvoyd
0.5x^2 + 25x - 150 >=125 x^2+50x-300>=250 (x^2+50x+625)>=550+625 (x+25)^2>=1175
anonymous
  • anonymous
and you did it like this is it correct?
inkyvoyd
  • inkyvoyd
it might be it might not be. That's what you have to judge.
anonymous
  • anonymous
so What's the smallest amount that can be charged to make a profit of at least $125
inkyvoyd
  • inkyvoyd
You asked me the answer? Don't do that. It's 235.2
anonymous
  • anonymous
so its wrong?
inkyvoyd
  • inkyvoyd
Figure out the answer for yourself.
anonymous
  • anonymous
I don't know what to do though.
inkyvoyd
  • inkyvoyd
p= -0.5x^2 + 25x - 150 seek smallest value of x such that p>=125 does that make sense? you said that doesn't make sense - what part of it doesn't make sense?
anonymous
  • anonymous
nevermind i got it

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