Question

4. The length of a room as y metres. Write the breadth of the room which is 10m less than twice the length. Write an the room. expression for the perimeter of the room​

Answer 1

Answer:

Given that ;

Length of the Room ( l ) = y metres

Breadth of the Room ( b ) = 2y - 10

Perimeter of the Room ( P )

Formula :

Perimeter of the Rectangle ( P ) = 2 ( l + b )

= 2 ( y + 2y - 10 )

= 2y + 4y - 10

Expression :

6y - 10

Answer 2

Answer:

Expression= 6y-20

Step-by-step explanation:

Length= y

breadth = 2y-10

we know that

Perimeter = 2(length+breadth)

perimeter = 2(y + 2y-10)

perimeter = 2(3y-10)

perimeter = 6y - 20

here we get the expression

hope you understood it

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