The cost 4
The cost to tile a floor that measures 7 x 6 square feet is $ 2,100. How much will tile a floor measuring 11 x 13 square feet cost?
Correct answer:
![](/img/23/floor2.jpg)
You need to know the following knowledge to solve this word math problem:
- algebra
- expression of a variable from the formula
- basic functions
- inverse proportion
- direct proportionality
- simple proportion
Units of physical quantities:
Grade of the word problem:
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