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Daniel [21]
3 years ago
6

Please help It’s due at 11:59 it’s 9:29 right now!!

Mathematics
1 answer:
yan [13]3 years ago
3 0

Step-by-step explanation:

  1. 8969kg/cm^3
  2. 20oz jar of$2.78
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You have decided to wallpaper your rectangular bedroom. the dimensions are 12 feet 6 inches by 10 feet 6 inches by 8 feet 0 inch
Papessa [141]
The wall area is the product of the room perimeter and the room height:
   A₁ = (2*(12.5 ft + 10.5 ft))*(8.0 ft) = 368 ft²

The window and door area together is
   A₂ = 2*((4 ft)*(3 ft)) + (7 ft)*(3 ft) = 45 ft²

The area of one roll of wallpaper is
   A₃ = (2.5 ft)*(30 ft) = 75 ft²

Then the number of rolls of wallpaper required will be
   1.1*(A₁ - A₂)/A₃ ≈ 4.74

5 rolls of wallpaper should be purchased.

_____
As a practical matter, not much of the window and door area can be saved. The rolls are 30 inches wide, but the openings are 36 inches wide. Some will likely have to be cut from two strips. The strips will have to be the full length of the wall, and the amount cut likely cannot be used elsewhere. If the window and door area cannot be salvaged, then likely ceiling(5.4) = 6 rolls will be needed (still allowing 10% for matching and waste).
8 0
3 years ago
Luke can paint 91 portraits in 7 weeks.
lidiya [134]
Hey!

91 ÷ 7 = 13

So, we know that Luke paints one portrait every week.

13 × 4 = 52

So, Luke paints 52 portraits in 4 weeks.
8 0
3 years ago
Read 2 more answers
Angle b is three times the measure of angle a. Angle c is two times the measure of angle a. What are the measures of all the ang
rewona [7]

Answer:

30 60 90

Step-by-step explanation:

4 0
3 years ago
Reema bought pencils for school in August, she gave them to her friends. She used
Veseljchak [2.6K]

Answer:

Reema bought 24 pencils in august.

Step-by-step explanation:

5 0
3 years ago
What are the length of each side of a quadrilateral when the perimeter is 33 and the sides are:
solong [7]
Answer: 
A = 6 
So 
Side A = 6 
Side B = 11 
Side C = 3 
Side D = 13

Explanation: 
To solve perimeter of a quadrilateral, you use this formula: 
side A + side B + side C + side D = total perimeter.

If the four sides are A, A + 5, A – 3, and 2A + 1 then you need to solve for A.

Write out an algebraic formula with these values:
A + (A + 5) + (A – 3) + (2A + 1) = P 
You also know that the total perimeter is 33, so :
A + (A + 5) + (A – 3) + (2A + 1) = 33 
You can add all the A values together to combine like terms like this:
5A + 5 – 3 + 1 = 33 
Solve fore A:
5A + 3 = 33 
5A = 33 – 3 
5A = 30 
A = 30 ÷ 5 
A = 6 

Check your answer: 
A + (A + 5) + (A – 3) + (2A + 1) = 33 
(6) + ((6) + 5) + ((6) – 3) + (2(6) + 1) = 33 
(6) + (11) + (3) + (13) = 33 
17 + 16 = 33 
33 = 33 

4 0
4 years ago
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