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ElenaW [278]
3 years ago
14

The width of a rectangle is 6 2/3 inches. The length of the is twice it’s width. What so the perimeter of the rectangle?

Mathematics
2 answers:
Nookie1986 [14]3 years ago
6 0
\text {Width = }  6\dfrac{2}{3}  \text { inches}



The length is twice its width:
\text {Length = } 2 \times 6\dfrac{2}{3} \text { inches}

Change to improper fraction:
\text {Length = }2 \times \dfrac{20}{3} \text { inches}

Combine into single fraction:
\text {Length = } \dfrac{40}{3} \text { inches}


Find Perimeter :
\text {Perimeter = Length + Length + Width + Width}

\text {Perimeter = } \dfrac{40}{3} + \dfrac{40}{3}   + \dfrac{20}{3}   + \dfrac{20}{3} = \dfrac{120}{3}  = 40 \text { inches}


\bf \text {Answer: Perimeter =  40 inches}
Dennis_Churaev [7]3 years ago
3 0
L = 2*W
L = 2 * 6 2/3 = 12 + 2*2/3 = 12 + 1 1/3 = 13 1/3
P = 2 * L + 2*W
P = 2 * (13 1/3) + 2 * 6 2/3
P = 26 2/3 + 13 1/3
P = 39 + 2/3 + 1/3
P = 40

It might be easier to understand if I used decimals. Let's try that.
L = 2 * 6 2/3 = 2 * 6.666666666 = 13.333333333
W = 6.666666666

P = 2L + 2W = 2*13.33333333 + 2*6.6666666666
P = 26.66666666 + 13.33333333
P = 40

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