the length of a rectangle is 7 by 5 of its breadth if its perimeter is 48 centimetre then what is its length
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Let breadth = x
So length = 7x/5
Perimeter = 48
=> 2(l+b) = 48
2(7x/5+x) = 48
2 (7x+5x/5) = 48
2 (12x/5) = 48
24x/10 = 48
24x = 480
x = 480/24
x = 20
Hence breadth = x = 20 cm
Length = 7x/5 = 7×20/5 = 140/5 = 28 cm
Brainliest pls
So length = 7x/5
Perimeter = 48
=> 2(l+b) = 48
2(7x/5+x) = 48
2 (7x+5x/5) = 48
2 (12x/5) = 48
24x/10 = 48
24x = 480
x = 480/24
x = 20
Hence breadth = x = 20 cm
Length = 7x/5 = 7×20/5 = 140/5 = 28 cm
Brainliest pls
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