Answer:
i have made it in above picture
220 cm
hope it helps
I believe the answer is 12 because if but in y= Mx+b format you would get 600= 50x. Then to solve you would dived 600 by 50 and get 12
Answer:
$25
Step-by-step explanation:
.5 * 50 = 25
25<27.5<30
The cheapest supplier is the first one.
Answer: x = -1, y = 1, z = 0
<u>Step-by-step explanation:</u>
EQ 1: -2x + 2y + 3z = 0 ⇒ 1(-2x + 2y + 3z = 0) ⇒ -2x + 2y + 3z = 0
EQ 2: -2x - y + 3z = -3 ⇒ -1(-2x - y + 3z = -3) ⇒ <u> 2x + y - 3z</u> = <u>3 </u>
3y = 3
y = 1
EQ 1: -2x + 2y + 3z = 0 ⇒ -2x + 2(1) + 3z = 0 ⇒ -2x + 2 + 3z = 0
EQ 3: 2x + 3y + 3z = 5 ⇒ 2x + 3(1) + 3z = 5 ⇒ <u> 2x + 3 + 3z</u> = <u>5 </u>
5 + 6z = 5
6z = 0
z = 0
EQ 1: -2x + 2y + 3z = 0
-2x + 2(1) + 3(0) = 0
-2x + 2 = 0
-2x = -2
x = -1