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const2013 [10]
3 years ago
14

The perimeter of a rectangle is 70 cm. If its length is decreased by 5 cm and its width is increased by 5 cm, its area will incr

ease by 50 squared cm. Find the length and the width of the original rectangle.
Mathematics
1 answer:
babunello [35]3 years ago
6 0

Answer:

5/6x

Step-by-step explanation:

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2 years ago
5 miles= km. how many km in 250 miles
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3 years ago
I want to know the answer of this question
Molodets [167]
\bf \textit{circumference of a circle}\\\\
C=2\pi r\qquad 
\begin{cases}
r=radius\\
-----\\
r=5x^2
\end{cases}\implies C=2\pi 5x^2\implies C=10\pi  x^2
\\\\\\
\textit{area of a circle}\\\\
A=\pi r^2\qquad 
\begin{cases}
r=radius\\
-----\\
r=5x^2
\end{cases}\implies A=\pi (5x^2)^2\implies A=\pi (5^2x^{2\cdot 2})
\\\\\\
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My number rounded to the merest tenth place is 6.4. What might my number be?
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It might be 6.35. I think.
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