Gratuity is the total tip given.
The tip is directly proportional to total cost:
18/0.20 = x/1.00
$90
Step-by-step explanation:
4x² - 3x - 2 = 0
0 = 4x² - 3x - 2
0 = 16x - 3x - 2
0 = 13 x -
9514 1404 393
Answer:
a. m = 2; y intercept = (0, 4); y = 2 x + 4
Step-by-step explanation:
The slope can be found using the formula ...
m = (y2 -y1)/(x2 -x1)
m = (18 -4)/(7 -0) = 14/7
m = 2
The y-intercept is the first given point: (0, 4).
The equation for the line in slope-intercept form is
y = mx + b
Here, we have m=2 and b=4, so the equation is ...
y = 2x +4
When you want to find the slope of the perpendicular line, all you have to do is flip the known slope upside down and make it negative. You know that
slope is 3 and you know
is perpendicular. So, just flip 3 upside down into
and then make it negative,
-<span>
. If you look at the coordinate grid, you can see that
crosses the y-axis at 4. When you put those into slope-intercept form you get
= -</span>
x + 4.
Answer:
8
Step-by-step explanation:
1hour 20 min = 80 min then divide 80 by 10
