polski1226 2 years ago 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?

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1. polski1226

@jim_thompson5910

2. polski1226

@AGummiBear55

3. polski1226

@Joshyface

4. polski1226

CMON @Joshyface YOU WERE TYPING I HELPED YOU LOL please

5. polski1226

@AravindG @abb0t @Aylin @ashlynn143 @annahampton @brinethery @breja @binarymimic @BradNasty @CalebBeavers @Carter15 @christinewilliams @dydlf @dirtrider @dumbcow

6. ashlynn143

@Joshyface

7. ashlynn143

8. polski1226

THANK YOU. cmon someone help

9. polski1226

@jim_thompson5910 I KNOW UR ON

10. polski1226

@dydlf @etaylor13579 @Firejay5 @ganeshie8 @girl05 @GodBlessYou @henryrodriguez713 @Helicopter @inkyvoyd @idksucks @iJustAteCheese @Itel @JuLyBaBe97 @JetWave600 @jennaaanicoleee @karatechopper @k.rajabhishek

11. inkyvoyd

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

12. polski1226

noo :(

13. inkyvoyd

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

14. polski1226

lemme try and do it WAIT HERE lol

15. Firejay5

16 = \$122

16. Firejay5

I am not for sure if it's right though

17. polski1226

okay so did you factor it?

18. Firejay5

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

19. inkyvoyd

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

20. polski1226

and you did it like this is it correct?

21. inkyvoyd

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

22. polski1226

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

23. inkyvoyd

24. polski1226

so its wrong?

25. inkyvoyd

Figure out the answer for yourself.

26. polski1226

I don't know what to do though.

27. 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?

28. polski1226

nevermind i got it