this is an illustration of the problem...
http://flickr.com/photos/98443290@N00/2100876010/
2007-12-10 00:33:59 · 8 answers · asked by Anonymous in Science & Mathematics ➔ Mathematics
thanx everyone. nice try. but everyone got it wrong... and I can prove it
2007-12-10 00:51:20 · update #1
yes, I'm serious the answer is NOT 7
2007-12-10 01:24:42 · update #2
non-sense using cosine law
but are you serious the answer is not 7?
2007-12-10 00:56:01 · answer #1 · answered by detroitmafia 3 · 0⤊ 1⤋
X+X-5+3X-10=20
2X-15+3x=20
5X=20+15
5X=35
X=7
2007-12-10 00:43:59 · answer #2 · answered by Anonymous · 0⤊ 1⤋
x=7
2007-12-10 00:42:26 · answer #3 · answered by someone else 7 · 0⤊ 1⤋
20 = x + (x - 5) + (3x - 10)
20 = 5x - 15
5x = 35
x = 7
Length of side C = 7 units
2007-12-10 00:40:41 · answer #4 · answered by Como 7 · 1⤊ 0⤋
01]
x+x-5+3x-10=20
5x-15=20
5x=20+15=35
x=7 units
Therefore c=7 inits
2007-12-10 00:41:53 · answer #5 · answered by alpha 7 · 0⤊ 1⤋
the perimeter is the sum of the sides
x + (x-5) + (3x-10) = 20
5x - 15 = 20
5x = 35
x = 7
.,.,.,.
2007-12-10 00:39:02 · answer #6 · answered by The Wolf 6 · 1⤊ 0⤋
the perimeter is the sum of the sides=
x + (x-5) + (3x-10) = 20
5x - 15 = 20
ie,
x-3=4
x = 7
2007-12-10 00:45:19 · answer #7 · answered by Anonymous · 0⤊ 2⤋
The answer is yes. I can solve that problem
2007-12-10 01:14:56 · answer #8 · answered by Bill F 5 · 0⤊ 2⤋