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?

Question

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?

anonymous · Answer

@jim_thompson5910

anonymous · Answer

@AGummiBear55

anonymous · Answer

@Joshyface

anonymous · Answer

CMON @Joshyface  YOU WERE TYPING I HELPED YOU LOL please

anonymous · Answer

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anonymous · Answer

@Joshyface

anonymous · Answer

@BradNasty come on please

anonymous · Answer

THANK YOU. cmon someone help

anonymous · Answer

@jim_thompson5910  I KNOW UR ON

anonymous · Answer

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inkyvoyd · Answer

p= -0.5x^2 + 25x - 150 
seek smallest value of x such that p>=125
does that make sense?

anonymous · Answer

noo :(

inkyvoyd · Answer

You want -0.5x^2 + 25x - 150 >=125.
Solve the quadratic inequality and eliminate extraneous solutions.

anonymous · Answer

lemme try and do it WAIT HERE lol

firejay5 · Answer

16 = $122

firejay5 · Answer

I am not for sure if it's right though

anonymous · Answer

okay so did you factor it?

firejay5 · Answer

me, no I type it into my graphing calculator and that's what I got

inkyvoyd · Answer

0.5x^2 + 25x - 150 >=125
x^2+50x-300>=250
(x^2+50x+625)>=550+625
(x+25)^2>=1175

anonymous · Answer

and you did it like this is it correct?

inkyvoyd · Answer

it might be it might not be. That's what you have to judge.

anonymous · Answer

so What's the smallest amount that can be charged to make a profit of at least $125

inkyvoyd · Answer

You asked me the answer? Don't do that. It's 235.2

anonymous · Answer

so its wrong?

inkyvoyd · Answer

Figure out the answer for yourself.

anonymous · Answer

I don't know what to do though.

inkyvoyd · Answer

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 · Answer

nevermind i got it