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m_a_m_a [10]
2 years ago
13

The length of a rectangle is a inches. Its width is 5 inches less then the length. Find the area and perimeter of the rectangle

Mathematics
1 answer:
Travka [436]2 years ago
3 0

Answer:

Area = (a² -5a) in²

Perimeter = (4a -10) in

Step-by-step explanation:

Let the length of the rectangle be a.

Given that, its width is 5 in less than the length.

So,

length ⇒ a

width ⇒ (a - 5)

First, let's find the area of the rectangle.

Area = length × width

Area = a ( a - 5 )

<em>Solve the brackets.</em>

Area = <u>(a² -5a) in²</u>

<u />

Now, let us find the perimeter of the rectangle.

Perimeter = 2 ( l + w )

Perimeter = 2 ( a + a - 5 )

Perimeter = 2 ( 2a - 5 )

Perimeter = <u>(4a -10) in</u>

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Crazy boy [7]

Given:

The given table represents the ingredient need to make 4 muffins.

To find:

The amount of flour needed to make 12 muffins.

Solution:

We have, the data for 4 muffins.

From the given table it is clear that,

Flour need for 4 muffins = 250 g

Flour need for 1 muffins = \dfrac{250}{4} g

Flour need for 12 muffins = \dfrac{250}{4}\times 12 g

                                          = 250\times 3 g

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So, 750 g flour is need to make 12 muffins.

Therefore, the correct option is D.

8 0
3 years ago
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I need help , plz help me and the question just like other one I think ?
ad-work [718]

Answer:

formula = LxWxH

substitute = L = 10 in  W = 7in H = 14 in

simply = 980

Step-by-step explanation:

since its a rectangle you multiply all the sides together.

4 0
3 years ago
In 2012, the population of Cincinnati, Ohio, was 296,550 with a population density of approximately 3800 people per square mile.
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Answer:

≈ 78mi^2

Step-by-step explanation:

To find approximate land area:

296,550/3,800 = 78.039

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Natasha_Volkova [10]

Answer:

x = 7

Step-by-step explanation:

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choli [55]
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