Flowerbed
We enlarged the circular flower bed, increasing its radius by 3 m. The substrate consumption per enlarged flower bed was nine times greater than before (at the same layer height as before magnification). Determine the original flowerbed radius.
Correct answer:
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You need to know the following knowledge to solve this word math problem:
- algebra
- quadratic equation
- system of equations
- expression of a variable from the formula
- planimetrics
- circle
- area of a shape
- basic functions
- reason
Units of physical quantities:
Grade of the word problem:
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