Answer:
45 miles in 1 hour
Step-by-step explanation:
1 hour is 60 minutes
22.5 miles / 30 minutes * 2/2 = 45 miles / 60 minutes = 45 miles in 1 hour
Answer:
The percent decrease is 20%
Step-by-step explanation:
![5 \times \frac{20}{100 }](https://tex.z-dn.net/?f=5%20%5Ctimes%20%20%5Cfrac%7B20%7D%7B100%20%7D%20)
![= 1](https://tex.z-dn.net/?f=%20%3D%201)
![5 - 1 \\ = 4](https://tex.z-dn.net/?f=5%20-%201%20%5C%5C%20%20%3D%204)
Its 114.2 because the area of the full circle is 200.96. So you take that divided by 4 +the area of the square(64)
the equation looks like this: 3.14×64÷4=50.24
then 50.24+64=114.2
Given:
A coordinate pair was dilated from (-3, 2) to (-6, 4).
To find:
The scale factor.
Solution:
We need to divide the coordinate of dilated point by the corresponding coordinate of original point to find the scale factor.
The value of scale factor is:
![k=\dfrac{x\text{-coordinate of image}}{x\text{-coordinate of original point}}](https://tex.z-dn.net/?f=k%3D%5Cdfrac%7Bx%5Ctext%7B-coordinate%20of%20image%7D%7D%7Bx%5Ctext%7B-coordinate%20of%20original%20point%7D%7D)
![k=\dfrac{-6}{-3}](https://tex.z-dn.net/?f=k%3D%5Cdfrac%7B-6%7D%7B-3%7D)
![k=2](https://tex.z-dn.net/?f=k%3D2)
Therefore, the scale factor is 2.