Solve these simultaneous equations:
2d + 3c = 1.51
4d + 10c = 4.02
Thank you!
2007-05-13 09:07:08 · 3 answers · asked by wankerfromacrosstheroad 2 in Science & Mathematics ➔ Mathematics
- 4d - 6c = - 3.02
4d + 10c = 4.02----ADD
4c = 1
c = 1/4 or 0.25
2d + 3/4 = 1.51
2d = 1.51 - 0.75
2d = 0.76
d = 0.38
c = 0.25 , d = 0.38
2007-05-13 09:25:38 · answer #1 · answered by Como 7 · 0⤊ 0⤋
2d+3c=1.51---equ1
4d+10c=4.02---equ2
swap the coefficient of d between that below and above.you then have the followin equation.
8d+12c=6.04
8d+20c=8.04 introduce negative sign.the equation is now-8c=-2 c=1/4.substi c in2 equ-1 2d+3[1/4]=1.51
collect like terms.there4,d=0.38
2007-05-13 10:35:35 · answer #2 · answered by Taiwolee 1 · 0⤊ 0⤋
c=0.25
d=0.38
2007-05-13 09:13:32 · answer #3 · answered by laughriot 1 · 0⤊ 0⤋