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QveST [7]
3 years ago
15

A scale drawing for a plot of land is shown below.

Mathematics
1 answer:
Vitek1552 [10]3 years ago
6 0

The area of real backyard is 72 square meters.

Step-by-step explanation:

Given,

Length of rectangular backyard = 8 cm

Width of rectangular backyard = 4 cm

According to scale;

2 cm = 3 m

1 cm = \frac{3}{2} = 1.5\ m

Real length of backyard = 8*1.5 = 12 m

Real width of backyard = 4*1.5 = 6 m

Real area of backyard = Length * Width

Real area of backyard = 12*6 = 72m²

The area of real backyard is 72 square meters.

Keywords: area, unit rate

Learn more about areas at:

  • brainly.com/question/12941985
  • brainly.com/question/12943520

#LearnwithBrainly

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8n+16
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The dimensions of an iPhone are x – 2 and x + 3. If the area of an iPhone is 14 square inches, find the dimensions of the iPhone
QveST [7]

Answer:

The dimensions of the iphone are 2 inches by 7 inches.

Step-by-step explanation:

Given that,

The dimensions of an iPhone are x – 2 and x + 3.

The area of an iphone is 14 sq inches

We need to find the dimensions of the iPhone. It is in the shape of a rectangle. Its area is given by :

A=l\times b\\\\(x-2)(x+3)=14\\\\x^2-2x+3x-6=14\\\\x^2+x-6-14=0\\\\x^2+x-20=0\\\\x^2+5x-4x-20=0\\\\x(x+5)-4(x+5)=0\\\\(x-4)(x+5)=0\\\\x=4\ and\ x=-5

Neglecting negative value

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