frame the equation and for the following word problem and solve the length of a rectangle is twice its breadth if the perimeter is 90 m find the length and breadth of a rectangle
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1
length is 30m , breath is 15m
himani42:
i want equation also
Answered by
7
Hi ur answer
LET BREATH BE X
THEN LENGTH=2X(since length is 2 times breath)
PERIMETER=90
PERIMETER OF RECTANGLE=2(L+B)
SO, REPLACING THE VALUE ,WE GOT
REQUIRED EQUATION IS BELOW
2(2X+X)=90
===========
2×3X=90
6X=90
X=90/6
X=15
SO, BREATH IS 15
SO, LENGTH IS 2×15=30
LET BREATH BE X
THEN LENGTH=2X(since length is 2 times breath)
PERIMETER=90
PERIMETER OF RECTANGLE=2(L+B)
SO, REPLACING THE VALUE ,WE GOT
REQUIRED EQUATION IS BELOW
2(2X+X)=90
===========
2×3X=90
6X=90
X=90/6
X=15
SO, BREATH IS 15
SO, LENGTH IS 2×15=30
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