Answer:
Z=i
, -i 
Step-by-step explanation:
Answer:
Slope is 1/2
Step-by-step explanation:
Brainliest please!
(2x +5) (3x-4)
=6x^2 + 7x - 20
Answer:
108 one-bedroom units
72 two-bedroom units
36 three-bedroom units
Step-by-step explanation:
<em>Let x, y, z the number of one-bedroom, two-bedroom and three-bedroom units respectively.</em> Then
1) x+y+z = 216
2) y+z = x
3) x = 3z
Multiplying equation 1) by -1 and adding it to 2), we get
-x = x-216 so, x = 216/2 = 108
x = 108
Replacing this value in 3) we get
z = 108/3 = 36
z = 36
Replacing now in 2)
y+36 = 108, y = 108-36 and
y = 72