Question

thirty decreased by a number is the same as 16 more than the number​

Answer 1

let the number be x

given, 30 decreased by 6 times the number-30-6x

that is same as 16 more than the number= x+16

equating these 2 equations since they

are equal

30-6x=x+16

6x+x=30-16

7x=14

X=2

Answer 2

$\huge \cal \underline \color{magenta}αηѕωєя$

• Area of rectangular field is 4608 m².

Step-by-step explanation:

Given:-

• Area of square field is 5184 m².

To find:-

• Area of rectangular field.

Solution:-

Given that,

Length of rectangular field is twice the breadth of rectangular field.

So,

Let, Breadth of rectangular field be x.

And, Length of rectangular field be 2x.

We will find side of square field for perimeter of square field.

Area of square = Side × Side

(Side)² = 5184

Side = √5184

Side = 72

Side of square field is 72 m.

Perimeter of square = 4×Side

4 × 72

288

Perimeter of square field is 288 m.

It is given that perimeter of square field is equal to the perimeter of rectangular field.

So, Perimeter of rectangular field is 288 m.

Perimeter of rectangle = 2(length + Breadth)

288 = 2×(2x + x)

288 = 4x + 2x

288 = 6x

288/6 = x

48 = x

Or, x = 48

We have taken breadth be x. So, Breadth of rectangular field is 48 m.

We have also taken Length be 2x = 2 × 48 = 96. So, Length of rectangular field is 96 m.

Area of rectangle = length × breadth

96 × 48

4608

• Area of rectangular field is 4608 m².

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