SOLUTION: Rectangle B has length (x-1) and width 5 cm. The perimeter of rectangle A (6x+2) is equal to the perimeter of rectangle B. Write down and solve an equation in x.
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-> SOLUTION: Rectangle B has length (x-1) and width 5 cm. The perimeter of rectangle A (6x+2) is equal to the perimeter of rectangle B. Write down and solve an equation in x.
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Question 758189: Rectangle B has length (x-1) and width 5 cm. The perimeter of rectangle A (6x+2) is equal to the perimeter of rectangle B. Write down and solve an equation in x. Answer by Cromlix(4381) (Show Source):
You can put this solution on YOUR website! Rectangle B's perimeter = 2*length + 2*width
= 2(x - 1) + 2(5)
= 2x + 8
Rectangle B's perimeter = Rectangle A's perimeter
2x + 8 = 6x + 2
Collect like terms.
-4x = -6
x = 3/2cm
Proof:
2x + 8 = 6x + 2
2(3/2) + 8 = 6(3/2) + 2
11 = 11
Hope this helps.
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