Louis
Louis wants to carpet the rectangular floor of his basement. The basement has an area of 5,120 square feet. The width of the basement is 4/5 its length. What is the length of Louis's basement?
Correct answer:

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You need to know the following knowledge to solve this word math problem:
- algebra
- equation
- system of equations
- expression of a variable from the formula
- arithmetic
- square root
- planimetrics
- area of a shape
- rectangle
Units of physical quantities:
Grade of the word problem:
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