SOLUTION: The rectangle has a perimeter of 5 units. What is the value of x?
The length is 3/(x+2) and the width is 2/(x-3).
Algebra.Com
Question 917641: The rectangle has a perimeter of 5 units. What is the value of x?
The length is 3/(x+2) and the width is 2/(x-3).
Found 2 solutions by stanbon, MathLover1:
Answer by stanbon(75887) (Show Source): You can put this solution on YOUR website!
The rectangle has a perimeter of 5 units. What is the value of x?
The length is 3/(x+2) and the width is 2/(x-3).
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Perimeter = 2(length + width)
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5 = 2[(3/(x+2))+(2/(x-3)]
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5(x+2)(x-3) = 2[3(x-3) +2(x+2)]
5[x^2-x-6] = 2[3x-9+2x+4]
5x^2 - 5x - 30 = 10x -10
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5x^2 -15x -20 = 0
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x^2 -3x - 4 = 0
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Factor:
(x-4)(x+1) = 0
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x = 4 or x = -1
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Cheers,
Stan H.
Answer by MathLover1(20849) (Show Source): You can put this solution on YOUR website!
The rectangle has a perimeter of units.
The length is and the width is .
What is the value of ?
solutions:
=>
=>
since we have rectangle, we need only positive solution; so
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