I'm doing some homework for Algebra II and need help with this one problem!
Please help!
14. Solve the system of equations.
2r+ 6s+ 4t=16
r+3s+2t=8
-5r+2s-3t=1
2007-12-12 16:28:30 · 6 answers · asked by upsetness 2 in Science & Mathematics ➔ Mathematics
Use the Cramer's rule or row operations.
Cramer's rule:
http://www.purplemath.com/modules/cramers.htm
Row operations:
http://www.purplemath.com/modules/mtrxrows.htm
Good Luck
Yeah, duffy is right. Anyway, you can check the links for th reference.
2007-12-12 16:35:27 · answer #1 · answered by Anonymous · 0⤊ 0⤋
duffy is right, you have 2equation and 3 unknown,
coz divide your first eq by 2 you get>>
2r+6s+4t=16 divide by 2 >>
r+3s+2t=8 this is the same as 2nd EQ, 2eq 3unknown
no solution
Regards
2007-12-12 16:54:13 · answer #2 · answered by iceman 7 · 0⤊ 0⤋
you may take Algebra II/Trig. i'm at present in Algebra II, and this is relatively trouble-free... My pal is giving me a pre-calc e book quickly so i will stop being bored. in case you like a undertaking choose for the extra complicated direction. you may sense fortunate that your college has that probability. i understand i could have down it if I had the possibility.
2016-12-11 03:10:26 · answer #3 · answered by giallombardo 4 · 0⤊ 0⤋
Not enough information...
The first and second equations are the same.
If you have 3 unknowns you need 3 independent equations to solve it.
2007-12-12 16:38:45 · answer #4 · answered by Anonymous · 0⤊ 0⤋
Your first two equations are co-linear. Therefore, you do not have three independent equations and cannot solve.
2007-12-12 16:33:29 · answer #5 · answered by duffy 4 · 0⤊ 0⤋
use matrixes and a graphing calculator is solve it in less than a minute.
2007-12-12 16:36:09 · answer #6 · answered by Anonymous · 0⤊ 2⤋