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Norma-Jean [14]
3 years ago
6

Seths reads 15% of the book in 30 minutes. How much more time will he need to finish reading the book?

Mathematics
1 answer:
pav-90 [236]3 years ago
5 0
Two and a half hours to finish the book
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Determine the value of X
dolphi86 [110]

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The value of x is 15 ⇒ answer D

Step-by-step explanation:

* Lets talk about dilation

- A dilation is a transformation that changes the size of a figure.  

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- The scale factor, measures how much larger or smaller  

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- If the scale factor between 0 and 1, then the image will be smaller

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∵ D (o, k) (x , 9) → (-10 , -6)

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- k means the scale factor of dilation

∵ The y-coordinate of the point is 9

∵ The image has y-coordinate -6

∵ The image = The scale factor × the coordinates

∴ -6 = k × 9 ⇒ divide both sides by 9

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- Lets find x by same way

∵ -10 = -2/3 × x ⇒ divide both sides by -2/3

∴ x = -10 ÷ (-2/3) ⇒ change the division to multiplication

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∴ The x-coordinate of the point before dilation is 15

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