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Vera_Pavlovna [14]
2 years ago
14

Explain why 5.12 x 4 equals 20.48 with numbers.

Mathematics
1 answer:
gogolik [260]2 years ago
3 0

Answer: 20.48

Step-by-step explanation: you add 5.12 four time then you get 20.48.

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Step-by-step explanation:

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If you cut away a triangle of area 59 cm² from a square, the remaining area will be 85 cm². Find the length of the side of the s
siniylev [52]
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now, if the triangle when it took off, it took 59 cm², and the square was left all by its lonesome with only 85 cm², that means with the triangle in it, the square is then 59 + 85 cm², or 144 cm².

\bf \textit{area of a square}\\\\
A=s^2\qquad 
\begin{cases}
s=\textit{length of a side}\\
---------\\
A=144
\end{cases}\implies 144=s^2
\\\\\\
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