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Mathematics 8 Online
OpenStudy (anonymous):

Dusty planted a rectangular garden that had a perimeter of 36 yards. The length of the garden is 6 feet longer than twice the width. What is the length of the garden in feet?

OpenStudy (radar):

Welcome to Open Study. Can you do algebra?

OpenStudy (shinalcantara):

try to recall the perimeter of a rectangle..

OpenStudy (radar):

If so, let x represent the unknown width. Now express the length in terms of the width. It says the length is 6 feet longer than twice the width. Put that down in algebra speak. Length = 2x + 6

OpenStudy (radar):

Now as shinaicantara as hinted at express the perimeter in terms of length and width.

OpenStudy (radar):

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OpenStudy (radar):

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OpenStudy (radar):

I also ask do you know what perimeter is?

OpenStudy (radar):

@JoseSalinas96 What is a perimeter??

OpenStudy (radar):

@joseSalinas96 please participate, after all it is your problem

OpenStudy (radar):

To find the perimeter add the length of the sides, there are 4 of them.

OpenStudy (shinalcantara):

let x = the width of the rectangular garden y = the length of the rectangular garden you're given that the perimeter is 36 yards isn't it that perimeter is twice the length plus twice the width? so, 2x + 2y = 36 ---eq'n 1 since you're given that the length is 6 feet longer than twice the width then you'll have: y= 6ft(1/3(yard/ft)) + 2x y = 2 +2x -----eqn 2 now substitute eqn 2 to eqn 1 2x + 2(2+2x) = 36 2x + 4 +4x = 36 6x = 36 - 4 6x =32 x =5.33 yards or 16 ft (width) substitute it to eqn 2 y = 2 + 2(5.33) y = 12.67 yards or 38 ft (length)

OpenStudy (radar):

|dw:1410793305352:dw| Is your answer wanted in ft or yards?

OpenStudy (shinalcantara):

@JoseSalinas96 consider radar's answer though.. mine's a bit long and may cause confusion. The problem asked it in feet @radar

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