Answer:
x= 3/4
Step-by-step explanation:
x-1/4=1/2
+1/4 +1/4
x=3/4
Answer:
y = -2.5x + 5
Explanation:
Convert -5x - 2y = -10 into slope-intercept form: y = -2.5x + 5
You can start solving for and graphing points by putting numbers in for 'x' in the equation, and the answer you get out will be y.
Ex: -2.5(7) + 5 = -12.5
7 is the number we inserted for x, so it is the x value. -12.5 is the number we got out of the equation, so it is the y value.
The points will now look like this: (x, y) but for the example they would look like (7, -12.5)
Plot the numbers, x being on the horizontal axis, y being on the vertical axis.
Answer: V = 
(third option)
Given Information:
- V =
<-- volume formula. - r = 5
- y = 13
- <em>h = ?</em>
To find h...
- h, r, and y make a right triangle.
- h and r are the two legs, y is the hyptenuse.
- h = 12
Use formula:
An hourglass is turned over with the top part filled with
sand. after 3 minutes, there are 855 ml of sand in the top half. after 10
minutes, there are 750 ml of sand in the top half. This can be represents a two
points ( 3, 855) and (10, 750) . using this to solve the slope m =
(750-855)/(10-3) = -15. And using one point the equation is y = -15x + 900.
Answer:
4
Step-by-step explanation:
slope, m = (y₂ - y₁)/(x₂ - x₁)
plug in the values, and we get m = (3 - (-1))/((3 - 2) = 4
As x increases by 1, y increases by 4.
