suppose M is between L and N. use the segment addition postulate to solve for the variable. then find the lengths of LM, MN, and LN
LM=7y+9
MN=3y+4
LN=143
plz only answer if u r REALLY GOOD @ geometry
2006-08-21 08:32:09 · 6 answers · asked by Anonymous in Education & Reference ➔ Homework Help
LM + MN = LN
7y+9 + 3y+4 = 143
10y+13 = 143
10y = 130
y = 13
LM = (7*13)+9 = 100
MN = (3*13)+4 = 43
2006-08-21 08:55:32 · answer #1 · answered by dragonslayere@sbcglobal.net 2 · 0⤊ 0⤋
LN=LM+MN
143=7y+9+3y+4
10y+13=143
10y=143-13
10y=130
y=13
LM=7y+9
=7x13+9
= 91+9
=100
MN=3y+4
=3x13+4
=39+4
=43
LN=143
2006-08-21 08:49:39 · answer #2 · answered by flori 4 · 0⤊ 0⤋
this is easy l___________m_____________n LN=LM+MN
7y+9+3y+4=143
10y+9+4=143
10y+13=143
10y=130
y=13
2006-08-21 08:43:51 · answer #3 · answered by tubasteve 2 · 0⤊ 0⤋
congruent signs and warning signs ability angles are equivalent... so AOB = COD 4x - 2 = 2x + 14 x = 8 AOB = 30 BOC = 50 COD = 2 in the different... AOD = COD + BOC + AOB and COD = AOB SO, 6X = 28 + 3X - 2 + 28 X = 18 so, BOC = fifty two AOD = 108
2016-11-05 07:52:02 · answer #4 · answered by ? 4 · 0⤊ 0⤋
L M N
----------7y + 9-----|------------------3y +4---
---------------------------143---------------------------------
so 7y +9 + 3y + 4 = 143
143 = 10y + 13
10y = 130
y = 13
LM = 100
MN = 43
doesnt look pretty when i preview it, sorry
2006-08-21 08:44:43 · answer #5 · answered by soccercake7 2 · 0⤊ 0⤋
LOL, mate I respect you for even attempting it, never got that far in School.
2006-08-21 08:41:15 · answer #6 · answered by Anonymous · 0⤊ 0⤋