Given; c = 4v - - - (i)
30v + 50c = 510 - - - (i)
Solve using substitution;
30v + 50 * 4v = 510
30v + 200v = 510
230v = 510 => v = 510/230
v = 2 5/23
For c;
c = 4 * 51/23 = 204/23
c = 8 20/23
v = 2 5/23, c = 8 20/23
c = 4v
30v + 50c = 510
now solve as usual
1 answer