Question

The perimeter of a rectangle is 91 cm. its length is (2x -1)cm and breadth is (x+9) cm. find its length and breadth.
answer step by step. ​

Answer 1

Answer:

L=24 CM

B=21.5 CM    

Step-by-step explanation:

GIVEN:

P=91 cm

L=(2x-1)

B=(x+9)

WE KNOW THAT :

PERIMETER OF A RECTANGLE=2(L+B)

                                              91=2(2X-1+X+9)

                                              91=2(3X+8)

                                              91=6X+16

                                              91-16=6X

                                              75/6=X

                                               12.5=X

L=(2(12.5)-1)=25-1=24

L=24

B=(12.5+9)=21.5

B=21.5 CM      

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