Valentine L.

asked • 06/28/17

If the length of a rectangle is five more than three times a number and the width is 3 less than twice the number, find the area.

Explain your reasoning.
 
 

1 Expert Answer

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Arturo O. answered • 06/28/17

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Let the number be x.
 
L = length = 3x + 5
 
W = width = 2x - 3
 
A = LW = (3x + 5)(2x - 3)
 
Without additional information, a final answer cannot be given, so at best you have area in terms of x.
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Sophia R.

That's wrong
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08/10/17

Arturo O.

length of a rectangle is five more than three times a number:  L = 5 + 3x = 3x + 5
 
width is 3 less than twice the number:  W = -3 + 2x = 2x - 3
 
find the area:  A = LW = (3x + 5)(2x - 3)
 
The words of the problem statement were translated correctly into algebra, and the formula for area of a rectangle was applied correctly.  There is nothing wrong with this solution.
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08/10/17

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