Question

9. the perimeter of the rectangle below is 65 inches

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Answer 1

x = 6

Length = 41

Width = 12

Explanation:

Perimeter: 2l + 2w

65 = 2l + 2w

65 =
`2(3(1)/(4) x+1)+2(2x)`

65 =
`(13)/(2) x+2 +4x`

65 =
`(21)/(2) x+2`

`(21)/(2) x=63`

x = 6

2
`(3(1)/(4) (6)+1)`

2
`((39)/(2) +1)`

2 (
`(41)/(2)`)

41

Answer 2

P = 2(13x/4 + 1 + 2x)

P = 2(13x+4+8x)/4

P = 2(21x+4)

P = 42x+8/4 =10,5x+2

65 = 10,5x+2

-10,5x=2-65

x= 6

Explanation: