Let
x = the number of a-cables
y = the number of b-cables
z = the number of c-cables
Cable a uses 3 black, 3 white and 2 red wires.
Cable b uses 1 black, 2 white and 1 red wire.
Cable c uses 2 black, 1 white and 2 red wires.
Because 120 black, 110 white and 100 red wires were used, therefore the system of equations is
3x + y + 2z = 120 (1)
3x + 2y + z = 110 (2)
2x + y + 2z = 100 (3)
Answer:
3x + y + 2z = 120
3x + 2y + z = 110
2x + y + 2z = 100
where
x,y,z = the number of a, b and c-cables respectively.
12 inches = 1 foot
thus 47 feet 3 inches = (47+3/12) feet =47.25 feet
Answer:
30%
Step-by-step explanation:
add all marbles together the six by the total of 20 to get .3 then multiply by 100 to get percentage
B would be the correct answer if right mark me Brainly