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seropon [69]
3 years ago
12

If ⅙ of a roll of wallpaper covers ¼ of the wall. How many rolls of paper are needed to cover 4 walls?

Mathematics
1 answer:
AVprozaik [17]3 years ago
5 0

Answer:

if 1/6 of a roll of paper covers 1/4 of a wall, this means that we will need 4/6 of a roll to cover a whole wall, now the question is asking how many rolls will we need to cover 4 walls, we already know that it takes 4/6 to fill one wall so if we add 4/6+4/6+4/6+4/6 we will get 16/6 or 2 4/6

we will need 16/6 or 2 4/6 of rolls of paper to cover 4 walls

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The variables y and x have a proportional relationship, and y = 28 when x = 21.
Kipish [7]

Answer:

c

Step-by-step explanation:

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3 years ago
A sculpture is made of solid copper in the shape of a cone. The sculpture is 67 inches tall, and its base has a radius of 15 inc
ruslelena [56]

Answer:

$16,725.21

Step-by-step explanation:

To get the cost of the copper used for the sculpture, we must first determine the volume of the object which is given as a cone

Recall that the volume V of a cone

= 1/3Pir^2h

where r is the base radius and h is the height

Given that the  sculpture is 67 inches tall, and its base has a radius of 15 inches, the volume of the sculpture

= 1/3 * 3.14 * 15^2 * 67

= 15,778.5 cubic inch

If copper costs 1.06$ per cubic inch, then the cost of the copper for the sculpture

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6 0
3 years ago
Can anyone please help me with this?
kotykmax [81]

y^4+12y^2+36=(y^2)^2+12y^2+36\\\\\text{substitute}\ y^2=t\\\\t^2+12t+36=t^2+2\cdot t\cdot6+6^2\leftarrow\text{It's a perfect square}\\\\\text{use}\ (a+b)^2=a^2+2ab+b^2\\\\=(t+6)^2=(t+6)(t+6)\\\\\text{we're going back to substitution}\\\\=(y^2+6)(y^2+6)\\\\(\sqrt6)^2=6\to(i\sqrt6)^2=-6\\\\\text{therefore}\\\\=(y^2-(i\sqrt6)^2)(y^2-(i\sqrt6)^2)\\\\\text{use}\ a^2-b^2=(a-b)(a+b)\\\\=\boxed{(y-i\sqrt6)(y+i\sqrt6)(y-i\sqrt6)(y+i\sqrt6)}

6 0
4 years ago
Distance around an unmarked circle can be measured (always, sometimes, never)
Alisiya [41]

Answer:

never

Step-by-step explanation:

:))

5 0
3 years ago
Read 2 more answers
What is the surface area of a cube with a side length of 5 inches?
LenaWriter [7]

The surface area of the cube is 150 in^2

Further Explanation:

A cube is a six-faced figure with same side length.

The formula for calculting the surface area of cube is given by:

SA = 6s^2

Here s is the length of side.

Given

Side length =s =5 in

SA=6*(5)^2\\= 6*25\\=150\ in^2

The area of cube is 150 in^2

Keywords: Surface area, Cube

Learn more about cube at:

  • brainly.com/question/2334270
  • brainly.com/question/2451812

#LearnwithBrainly

7 0
3 years ago
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