If the side lengths of triangle abc have the ratio 2 : 3 : 4 and the perimeter is 108 calculate each side length for triangle abc

Shortest side = 2 / (2+3+4) = 2/9 of the perimeter

= 2/9 * 108 = 24

the other 2 sides are 1/3 * 108 = 36 and 4/9 * 108 = 48

So 3 sides are 24, 36 and 48 units long

x = -3

y = -18

step-by-step explanation:

to solve by substitution, substitute one variable and solve for the other. then substitute again to find the remaining variable.

x-1/3(3x-9) = -3 since y=3x-9 substittute y.

x-1/3(3x-9)=-3

x + x +3 = -3

2x+3=-3

2x+3-3= -3-3

2x=-6

x=-3

substitute again into y=3x-9

y=3(-3)-9

y=-9-9

y=-18