SOLUTION: 33) The sides of a rectangle are in the ratio 3 : 2. What is the length of each side if the perimeter of the rectangle is 55 cm? 34) The sides of a triangle are in the ratio 3 :

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Question 156624This question is from textbook Prentice Hall Mathematics Algebra 2
: 33) The sides of a rectangle are in the ratio 3 : 2. What is the length of each side if the perimeter of the rectangle is 55 cm?
34) The sides of a triangle are in the ratio 3 : 4 : 5. What is the length of each side if the perimeter of the triangle is 30 cm?
This question is from textbook Prentice Hall Mathematics Algebra 2

Answer by stanbon(75887) About Me  (Show Source):
You can put this solution on YOUR website!
The sides of a rectangle are in the ratio 3 : 2. What is the length of each side if the perimeter of the rectangle is 55 cm?
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Let length be 3x and let width bwe 2x.
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EQUATION:
Perimeter = 2(length + width) = 55 cm
2(3x+2x) = 55 cm
2*5x = 55 cm
2x = 11 cm
x = 6.5 cm
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2x = 11 cm (width)
3x = 3*6.5 = 19.5 cm (length)
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34) The sides of a triangle are in the ratio 3 : 4 : 5. What is the length of each side if the perimeter of the triangle is 30 cm?
EQUATION:
2x + 4x + 5x = 30 cm
11x = 30 cm
x = (30/11) cm
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3x = 90/11 cm
4x = 120/11 cm
5x = 150/11 cm
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Cheers,
Stan H.