Answer:

length = 15 cm and width = 9 cm

Step-by-step explanation:

the perimeter (P) of a rectangle is calculated as

P= 2l + 2w

where l is the length and w is the width

let the width = w

then length = 2w -3 [3 less than twice width]

⇒P = 2w + 2(2w - 3)

= 2w + 4w - 6

= 6w - 6

we are given that P = 48

6w-6 = 48

add 6 to both sides and divide by 6

width = 6w = 54

w = 9 cm

length = 2w - 3 = (2x 9) - 3

= 18 - 3

=15cm

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