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chameleonsarelife
01.12.2020 •
Mathematics
PLEASE HELP ASAP.
A triangle with a vertex at point Y(-3, 7) is dilated by a scale factor represented by the coordinate pair (2/3x, 2/3y ). What is the location of Y'?
Please look at the picture below for the answer choices.
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Ответ:
Step-by-step explanation:
Given
Required
Determine Y'
Y' can be solved by multiplying the scale factor by Y
i.e.
For, the x coordinates.
Where
For the y coordinates:
Where
Hence:
Ответ:
567 students.
Step-by-step explanation:
Here, According to the given information,
The ratio of students who like orange and total number of student participate in the survey =![\frac{34}{120}](/tpl/images/0277/1431/aa0ec.png)
Let x students out of 2,000 students like orange.
Thus, In this case, the ratio of students who like orange and total number of student participate in the survey =![\frac{x}{2000}](/tpl/images/0277/1431/651bd.png)
By the proportional reasoning,
Both ratio must be equal.
That is,![\frac{x}{2000}=\frac{34}{120}](/tpl/images/0277/1431/bf2eb.png)
⇒![x = 2000\times \frac{34}{120}](/tpl/images/0277/1431/c21a4.png)
⇒![x = \frac{68,000}{120}](/tpl/images/0277/1431/e7597.png)
⇒![x = 566.666666667\approx 567](/tpl/images/0277/1431/131c7.png)
Thus, out of 2000 students about 567 students select an orange as their favorite fruit.