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.
Hello,
If a solid ring is a TOR (tore in french , a room air )
then answer D
Answer: 99/100
Step-by-step explanation:
9/10 + 9/100 = 0.99 We just need to convert 0.99 as a fraction, converted to a fraction it is 99/100. Hope I helped!
Consider this option:
1. formula of perimeter is: P=2(a+b), where a & b - the sides of rectangle.
2. according to the condition 2(x+(x+4))<120; ⇒ x<28
answer: D. x<28
Answer:
x = 50°
y = 130°
z = 130°
Step-by-step explanation:
the central angle is equal to it's arc in degrees.
y = 180° - 50° = 130°
