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lilg132Best ResponseYou've already chosen the best response.1
4t  5r = 21 (multiply all by 7) 3t  7r = 18 (multiply all by 5) 28t  35r = 147 15t + 35r = 90 add the two equations together 13t =237 t = 18.230769230769230769230769230769 4(18.230769230769230769230769230769)  5r = 21 72.923076923076923076923076923077  5r = 21 72.923076923076923076923076923077  21 = 5r 51.923076923076923076923076923077 = 5r 10.384615384615384615384615384615 = r not sure if this is right
 one year ago

chris65Best ResponseYou've already chosen the best response.1
i got the answer of t=57/13 and r=9/13 but i have to put it into a matrices
 one year ago

lilg132Best ResponseYou've already chosen the best response.1
lol damn i had it right the first time
 one year ago

lilg132Best ResponseYou've already chosen the best response.1
let me write it out again
 one year ago

chris65Best ResponseYou've already chosen the best response.1
ok but i dont know how to put it into a matrix
 one year ago

lilg132Best ResponseYou've already chosen the best response.1
4t  5r = 21 3t  7r = 18 4t = 21 + 5r divide everything by 4 t = 5.25 + 1.25r 3(5.25 + 1.25r)  7r = 18 15.75 + 3.75r  7r = 18 15.75  18 = 7r  3.75r 2.25 = 3.25r 2.25 / 3.25 = 3.25r / 3.25 9/13 = r 4t  5(9/13) = 21 4t + 45/13 = 21 4t = 21  45/13 4t = 228/13 4t / 4 = (228/13)/4 t = 57/13
 one year ago

lilg132Best ResponseYou've already chosen the best response.1
ok let me work out how to put into matrix
 one year ago

chris65Best ResponseYou've already chosen the best response.1
ok i got all that i just dont no how to make a matrix out of that
 one year ago

lilg132Best ResponseYou've already chosen the best response.1
no idea with matrixes going to have to ask someone else sorry
 one year ago

AriPottaBest ResponseYou've already chosen the best response.0
dw:1354243922660:dw
 one year ago

chris65Best ResponseYou've already chosen the best response.1
thats what i have to put my answer in
 one year ago

AriPottaBest ResponseYou've already chosen the best response.0
only two sets of brackets?
 one year ago

AriPottaBest ResponseYou've already chosen the best response.0
are they only looking for Dt and Dr?
 one year ago

AriPottaBest ResponseYou've already chosen the best response.0
dw:1354244183257:dw there. lol
 one year ago

chris65Best ResponseYou've already chosen the best response.1
ok i got another problem for ya
 one year ago

chris65Best ResponseYou've already chosen the best response.1
3xz=4 x+y+7z=0 3x+yz=4 and x=148/119 y=16/17 z=1
 one year ago

chris65Best ResponseYou've already chosen the best response.1
that also has to be into a matrices
 one year ago

AriPottaBest ResponseYou've already chosen the best response.0
oh. idk about 3 variable ones. i'm sorry :/
 one year ago
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