2 monitors for each hallway, 30 hallways, this means there are 60 total monitors. There are 3 sets of 20 monitors, and 4 for each set, which means that there are 12 supervisors needed to be appointed.
Answer:
See below and attached.
Step-by-step explanation:
Draw a rectangle.
Divide it in half.
Divide each part in half again.
Lastly, divide each part again in half.
This will give a total of 8 sections.
Project a uses 1/2 of the fabric. This means it will use 4 out of the 8 pieces.
Project b uses 1/4 of the fabric. This means it will use 2 out of 8 pieces.
So the fabric that is left is 1 - 1/2 - 1/4 = 1/4.
You can find the amount left for any number of yards of fabric by taking f(x) = x/8 - 3/4
Compatible numbers are number that are easy to add together.
If I change 87 to 90 and 34 to 30 I have compatible numbers
90 + 30 = 120. I would probably just change the 87 to 90 since I could to 90 + 34 mentally and get 124 which is closer to the exact answer.
222 + 203 - becomes 220 +200 = 420
May I suggest that you can also balance the numbers: when you change 87 to 90 you added 3. To compensate, subtract 3 from 34 and get 31. 90+31= 121, the exact answer.
222 becomes 200 so you lowered it by two. To compensate add 2 to 203. Now you have 220+205= 425 which again, is the exact answer. Use estimation is needed but what I just showed you works well to and give you the exact answer.
One more: 199 + 306 = 200 + 305 = 505 (exactly) Instead of 200 + 300 = 500 which is a close estimate using compatible numbers.
Answer:
1 lb 4 oz of Ribeye for 4.99.
Step-by-step explanation:
1 ounce of Ribeye costs $0.25
1 ounce of filet Mignon costs $0.30
(There are 16 ounces per pound)
20 oz = 4.99 --> 4.99/20 = 0.2495
38 oz = 9.75 --> 9.75/38 = 0.2565789474