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24 Jul 2017, 01:08
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The length of a rectangular photograph is 2 longer than the width of the photograph. If the area of the photograph is 35, what is the width?
A. 3
B. 4
C. 5
D. 6
E. 7
A. 3
B. 4
C. 5
D. 6
E. 7
24 Jul 2017, 02:15
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If the width is w, the length is w+2
Since, it has been given that area of the rectangular photograph is 35.
w(w+2) = 35
Solving for w, w=5
Therefore, the width of the photograph is 5(Option C)
Since, it has been given that area of the rectangular photograph is 35.
w(w+2) = 35
Solving for w, w=5
Therefore, the width of the photograph is 5(Option C)
24 Jul 2017, 08:28
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MathRevolution
The length of a rectangular photograph is 2 longer than the width of the photograph. If the area of the photograph is 35, what is the width?
A. 3
B. 4
C. 5
D. 6
E. 7
A. 3
B. 4
C. 5
D. 6
E. 7
\(w(w + 2) = 35\)
Or, \(w^2 + 2w - 35 = 0\)
Or, \(w^2 + 7w - 5w - 35 = 0\)
Or, \(w(w + 7) -5( w + 7) = 0\)
Or, w = 5 , answer must be (C)
