## anonymous one year ago I have a work sheet from my algebra 2 class involving greater than and less than signs and im confused can anyone help?

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1. anonymous

$-12\le d +7$

2. marihelenh

You need to isolate the variable. So, subtract 7 from both sides.

3. anonymous

What do you get

4. anonymous

i forgot the steps and the special tricks that are specificaly used when it involves a greater than or less than signs @twistnflip

5. marihelenh

The only thing you really have to remember is that when multiplying or dividing by a negative number, the sign flips.

6. anonymous

$-19\le d$

7. marihelenh

Yes, that is correct! You don't have to do any graphing or such right?

8. anonymous

nope! Thank you i have a couple more if i can give you my final answers?

9. anonymous

yes

10. anonymous

go ahead I will check them

11. anonymous

okay i gotta due them ill tag you guys when im done

12. anonymous

ok

13. anonymous

$1z-1\ge 2z-3$

14. anonymous

and i got

15. anonymous

$z \ge 2$

16. anonymous

eek, check your work on that one, I got something different

17. marihelenh

What was your work @mmrachel ?

18. anonymous

JK nevermind, I need to check my work. You are correct, sorry about that

19. anonymous

so i divided the negative 1 and didnt change any of the signs was i supposed to?

20. marihelenh

If you divide by a negative, you flip the sign.

21. anonymous

correct can you please type your work, it may be easier to check it

22. anonymous

ok i will

23. marihelenh

You had the correct answer, the sign just needed to be flipped.

24. anonymous

so instead of greater than its less than?

25. anonymous

yes

26. anonymous

anymore?

27. anonymous

yes

28. anonymous

$\frac{-2 }{ 3 }r \le \frac{ 7 }{ 12 }$

29. anonymous

what did you get?

30. anonymous

$r \le \frac{ 21 }{ 24 }$

31. anonymous

eek ok, I actually check my work on this one and that is wrong, mind typing your steps?

32. anonymous

i times both sides by the recipricole 3/-2 on both sides then i just multiplied 7/12 by 3/-2

33. anonymous

ok well silly, you forgot to simplify lol. what do 21 and 24 have in common

34. anonymous

3?

35. anonymous

it simplifies to -7/8 (you accidentally cancelled the negative) final answer would be $r \ge \frac{ -7 }{ 8 }$

36. anonymous

make sense?

37. anonymous

yeah! lol i didnt do half bad. thanks again,

38. anonymous

no problem!!

39. anonymous

that was it

40. anonymous

great where should I post my english 2? I will post it in english and tag you will you come try?

41. anonymous

yes i will

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