Ask a Question(Create a thread) |
|
Math homework...need helpTalk about anything here, just keep it clean. |
|
Thread Tools | Display Modes |
#1
|
||||
|
||||
Math homework...need help
I'm good at math, but not exactly a math whiz. Current grade in math: 97
I need help with #33-35 of my math homework...well, maybe not, but I want you take a look... ΔABC: given - D is the centroid. Use the given information to find the value of x. 33. BD = 4x + 5 BF = 9x I know that BD is 2/3 of BF. Do I do this -> 4x + 5 = 2/3(9x) I got x = 2/5. Did I get x right and/or did I do it right to find x? 34. GD = 2x - 8 GC = 3x + 3 I know that GD is 1/3 of GC. Do I do this -> 2x - 8 = 1/3(3x + 3) I got x = 9. I'm sure I did it correctly...I just want to make sure my calculations are correct. 35. AD = 5x DE = 3x - 2 I know that AD + DE = AE. Also, I know that AD is 2/3 of AE and DE is 1/3 of AE. So what I do is this...? -> 5x = 1/2(3x - 2)? ... I get 5x = 3/2x - 1. Now what? Last edited by Jessica; December 12, 2008 at 01:06 PM. |
Get rid of these ads by registering for a free Tomísimo account.
|
#2
|
||||
|
||||
well since no one is helping me I will have to see if I am right when I go to Math today :P
|
Link to this thread | |
|
|
Similar Threads | ||||
Thread | Thread Starter | Forum | Replies | Last Post |
Math Homework Help | Jessica | General Chat | 9 | November 20, 2008 05:29 PM |
Math question - Triangle | Jessica | General Chat | 3 | November 10, 2008 05:35 PM |
Math- correct? | Jessica | General Chat | 2 | November 01, 2008 01:37 PM |
Help with my homework | Jessica | Translations | 6 | October 01, 2008 11:03 AM |
dialogue homework | starkrystudent | Grammar | 18 | March 27, 2008 04:27 PM |