Answer:
You would have to find the surface area
Step-by-step explanation:
If you had to find something to FILL the room then you would need volume, however, you are working with walls which can be viewed as 2 dimensional, whilst volume is 3 dimensional.
So what you would do is find the surface area of the walls and the ceiling, and then exclude the floor.
If you are given the total surface area, then you need to find the surface area of the floor and subtract it by the total surface area and that will give you how much paint is needed.
Answer:
y = 4
Step-by-Step explanation:
4x5 = 20
2x5 = 10
20+10=30.
(4x5) + (2x5) = 30
or
(yx5) + (2x5) = 30
Brainliest would be appriciated :) have a nice day!
Answer:
Step-by-step explanation:
Charlotte's revenue earned : R = 12.50h.....where R = revenue earned and h represents hrs worked
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break even point :
12.50h = 45 + 2.50h
12.50h - 2.50h = 45
10h = 45
h = 45/10
h = 4.5 <== she would have to work 4.5 hrs to break even
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revenue - expenses = profit / loss
for 5 hrs...h = 5 for 3.5 hrs
12.50(5) - (45 + 2.5(5)) = 12.50(3.5) - (45 + 2.5(3.5)) =
62.5 - (45 + 12.5) = 43.75 - (45 + 8.75) =
62.5 - 57.5 = $ 5 profit 43.75 - 53.75 = -10....$ 10 loss
for 4 hrs for 7 hrs
12.50(4) - (45 + 2.50(4)) = 12.50(7) - (45 + 2.50(7)) =
50 - (45 + 10) = 87.5 - (45 + 17.5) =
50 - 55 = - 5.....$ 5 loss 87.5 - 62.5 = $ 25 profit
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12.50h - (45 + 2.50h) = 50
12.50h - 45 - 2.50h = 50
10h - 45 = 50
10h = 50 + 45
10h = 95
h = 95/10
h = 9.5 <=== she would have to work 9.5 hrs to make a $ 50 profit
We know that the shorter side of the rectangle is 1/2 of the longer side (because it's a square folded in half). To meet this condition and to have a perimeter of 24cm, we may assume that the dimension of the rectangle are 8cm x 4cm.
Now if we unfold it, we'll get a square of 8cm x 8cm. To find the are we just need to find 8², which is <u>64 cm²</u>.