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Nutka1998 [239]
3 years ago
10

Nadia thinks of a number.

Mathematics
1 answer:
kogti [31]3 years ago
3 0

let the num be a

/a÷5=20

/a=20×5

/a =100

square root of 100 is 10

so the number is 10

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The lengths of the diagonals of rectangle ABCD intersect at E. If AE =x+4 and CE= 3x-12. What is the length of BD?
swat32

Answer:

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Step-by-step explanation:

First, note that the diagonals of a rectangle are equal and bisect each other. In other words, DB = CA and CE = EA and DE = BE.

Also, AE + CE = CA

So, using this, we can write this equation:

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Subtract 4 from both sides.

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Divide both sides by -2

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Then, substitute this into AE + CE = CA

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I hope this helps! Feel free to ask any questions! :)

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