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The length of the rectangle is 8, smaller than three times the width. If we increase the width by 5% of the length and the length is reduced by 14% of the width, the circumference of the rectangle will be increased by 30 m. What are the dimensions of the rectangle?
Correct answer:
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You need to know the following knowledge to solve this word math problem:
- algebra
- system of equations
- expression of a variable from the formula
- planimetrics
- perimeter
- rectangle
- basic functions
- percentages
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