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2 years ago

What is 15 1/2 divided by 2 1/5

Mathematics

2 answers:

IgorLugansk [536]2 years ago

8 0

Answer:

6 1/5

Step-by-step explanation:

sattari [20]2 years ago

5 0

Answer:

Mixed Number Form: 7 1/22

Decimal Form: 7.045 repeating

Exact Form: 155/22

Hope this Helps!

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Of all rectangles with a perimeter of 7, which one has the maximum area? (give the dimensions.)

Elena L [17]

The rectangle with maximum area will actually be a square.

Each side will be of length 7/4 = 1 3/4.

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3 years ago

The length of a rectangle is three times it's width. The perimeter of the rectangle is 100 inches. What are the dimensions of th

Pavel [41]

Answer:

Dimensions : 37.5 * 12.5

length : 37.5

width : 12.5

Step-by-step explanation:

let x = length and y = width

x = 3y based on info from problem

Perimeter = 2(length + width)

100 = 2(x + y)

substitute 3y for x

100 = 2(3y + y)

100 = 2(4y)

100 = 8y

y = 12.5

x = 3(12.5) = 37.5

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3 years ago

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Sliva [168]

Step-by-step explanation:

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2 years ago

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Amanda [17]

Answer:

Step-by-step explanation:

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2 years ago

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Sergio works at a bakery and needs to cover

Elan Coil [88]

Answer:

The surface area that Sergio needs to frost on each cake is 3,238 square centimeters

Step-by-step explanation:

The picture of the question in the attached figure

we know that

The surface area of the cylindrical cake is equal to the lateral area plus the area of the top of cylinder (remember that the bottom of the cake does not need frosting)

$SA=\pi r^{2}+2\pi r h$

we have

$r=40.2/2=20.1\ cm$ ---> the radius is half the diameter

$h=15.6\ cm$

$\pi=3.14$

substitute the given values

$SA=(3.14)(20.1)^{2}+2(3.14)(20.1)(15.6)$

$SA=1,268.59+1,969.16\\SA=3,237.75\ cm^2$

Round up to the nearest whole number

$SA=3,238\ cm^2$

therefore

The surface area that Sergio needs to frost on each cake is 3,238 square centimeters

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3 years ago