Answer:

Step-by-step explanation:
To be able to answer this question properly. I'll assume the length of the room is in meters.
So for the room, we have:


For the bed, we have:


First, we calculate the surface area of the room.

Convert all units to cm


Next, we calculate the area of the bed


The area of the space left is the difference between A1 and A2



Answer: True
Step-by-step explanation: Because the solutions can not land on the dotted lines.
All you do is solve for z. So 8z-13=7. To solve for a variable you have to do the opposite to cancel out the numbers on each side. First you add 13 over to 7 to cancel out 13 on the z side. So 8z=20 is what you have left. Then you divide 8 on both sides to cancel out 8 on the z side. what you are left with is z=2.5. Lastly you plug and check. 8(2.5) - 13 = 7, 20-13=7. And thats correct so z is 2.5.
Answer:
x y
-2 5
-1 . 1
3 . 1
-1 -2
Step-by-step explanation:
in 1 just put in
x y
-2 5
-1 . 1
3 . 1
-1 -2
120 - 96 = 24
Now we have to find what percent of 120 24 is.
x × 120 = 24
x = 0.2
0.2 means 20%.
The discount is 20% off.