Answer:
$624
Step-by-step explanation:
48 x 13
10 1/5 times 5/1 add the zero
The answer would be C) As the number of hours of studying increases, test scores increase because the scatterplot has a cluster that increases from left to right.
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Hope this helps. :)
Answer:
14 = x and 2.5 = y
Step-by-step explanation:
For ABCD - the top is 8 and the sides are 11. 11 minus 8 is 3. 11 plus 3 equals 14, that’s x.
For GHIJ - the bottom is 8 and both sides are 5.5. So 8 minus 5.5 is 2.5. That’s y.
Answer:
The equation of the line is,
![y = - \frac{2}{5} x - 1](https://tex.z-dn.net/?f=y%20%3D%20%20-%20%20%5Cfrac%7B2%7D%7B5%7D%20x%20-%201)
Step-by-step explanation:
First, you have to write it in a form of y = mx + b :
![2x + 5y = 15](https://tex.z-dn.net/?f=2x%20%2B%205y%20%3D%2015)
![5y = 15 - 2x](https://tex.z-dn.net/?f=5y%20%3D%2015%20-%202x)
![y = 3 - \frac{2}{5} x](https://tex.z-dn.net/?f=y%20%3D%203%20-%20%20%5Cfrac%7B2%7D%7B5%7D%20x)
![y = - \frac{2}{3} x + 5](https://tex.z-dn.net/?f=y%20%3D%20%20%20-%20%5Cfrac%7B2%7D%7B3%7D%20x%20%2B%205)
When both lines are parallel to each other, they will have to same gradient value. So the equation of the line is y = (-2/5)x + b. Next, you have to find the value of b by substutituting (-10,3) into the equation :
![y = - \frac{ 2}{5}x + b](https://tex.z-dn.net/?f=y%20%3D%20%20%20-%20%5Cfrac%7B%202%7D%7B5%7Dx%20%2B%20b%20)
![let \: x = - 10,y = 3](https://tex.z-dn.net/?f=let%20%5C%3A%20x%20%3D%20%20-%2010%2Cy%20%3D%203)
![3 = - \frac{2}{5} ( - 10) + b](https://tex.z-dn.net/?f=3%20%3D%20%20-%20%20%5Cfrac%7B2%7D%7B5%7D%20%28%20-%2010%29%20%2B%20b)
![3 = 4 + b](https://tex.z-dn.net/?f=3%20%3D%204%20%2B%20b)
![3 - 4 = b](https://tex.z-dn.net/?f=3%20-%204%20%3D%20b)
![b = - 1](https://tex.z-dn.net/?f=b%20%3D%20%20-%201)