All categories

3 years ago

The west room of the White House has a perimeter of 180 feet. If the width is 50 feet, what is the length of the West room?

Mathematics

1 answer:

NeTakaya3 years ago

4 0

Answer:

l = 40

Step-by-step explanation:

Since Perimeter comes from P = 2l + 2w so 180 = 2l + 2(50)

180 = 2l + 100

180-100 = 2l

80 = 2l

so l = 40

You might be interested in

The radius of a sphere is multiplied by . What effect does this have on the volume of the sphere? A. The volume of the sphere is

Greeley [361]

Answer:

Option A. The volume of the sphere is multiplied by 1/343.

Step-by-step explanation:

The volume of a sphere can be obtained by the following formula:

V = 4/3πr^3

Let the initial volume (V1) of the sphere be:

V1 = 4/3πr^3 = (4πr^3)/3

Now, if we multiply the radius by 1/7, then the new volume (V2) of the sphere will be:

V2 = 4/3 x π x (1/7r)^3

V2 = 4/3 x π x 1/343r^3

V2 = (4πr^3)/1029

Now we determine the ratio of V2 : V1 as shown below:

V2/V1 = (4πr^3)/1029 ÷ (4πr^3)/3

V2/V1 = (4πr^3)/1029 × 3/(4πr^3)

V2/V1 = 3/1029

V2/V1 = 1/343

V2 = 1/343 x V1

Therefore, the volume of the sphere is multiplied by 1/343.

3 0

2 years ago

Margaret wants to cover a footrest in the shape of a rectangular prism with cotton fabric. The footrest is 18 in. 12 in. 10 in.

user100 [1]

Answer:

No, she cannot completely cover the footrest.

Step-by-step explanation:

First of all, we need to find the total surface area of the prism to be covered using the cotton cloth

the total surface area of the prism is

A = 2wl + 2lh + 2hw,

l is the length of the prism = 18 in,

w= width of the prism = 12 in,

h is the height of the prism = 10 in

hence $A = 2(12 \times 18 ) + 2(18 \times 10) + 2(10 \times 12)=1032in^{2}$

We need to convert the area of the fabric to be in the same unit as that of the prism

Area of cotton fabric = $1 yd^{2}= 1296 in ^{2}$

since the surface area of the foot rest is more than the area of fabric she has, she cannot completely cover the footrest

6 0

3 years ago

Read 2 more answers

What is the area of the red? Use 3.14 for π.

grigory [225]

Ask your teacher that’s all you have to do.

8 0

3 years ago

A fish dives into a depth of -3/4 mile below the surface of the water. A turtle's depth is 1/3 as deep as the fish's depth. What

Tomtit [17]

Basically you just need to multiply the two fractions together to get the depth of the turtle. Therefore the turtle is 3/12 miles deep or 1/4 mile deep.

7 0

3 years ago

A property agent charges a commission of 2.5% on the selling price of a house. If the agent sells a house $650000, find the amou

nadya68 [22]

650000(0.025) = $16,250

8 0

3 years ago

Read 2 more answers