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Radda [10]
2 years ago
8

If one side of a square is increase by 10 units, the area of the rectangle formed is 3 times the area of the square. Find the ar

ea of the rectangle.
Mathematics
1 answer:
Oksanka [162]2 years ago
3 0

Answer:

75 square units

Step-by-step explanation:

(x+10)x=3x^2

x^2+10x=3x^2

10x=2x^2

5x=x^2

x=5

Plugging in 5 into either of the initial equations yields the answer.

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