If 8 is about 25% or 1/4 of the total cost of their meal, that means that the total cost was 4 times the cost of the tip.
Put it into proportions-
8:25
x:100
Since you have to multiply 25 by 4 to get to 100 you need to multiply 8 by 4 to get to x.
8 times 4 is 32, which is also the value of x.
The total cost would be $32.
Given:
Point = (3,4)
Slope : m = -z
To find:
The point slope formula.
Solution:
Point slope form: If a line passes through the point
and having slope m, then the point slope form of the line is
![y-y_1=m(x-x_1)](https://tex.z-dn.net/?f=y-y_1%3Dm%28x-x_1%29)
The line passing through the point (3,4) and having slope -z.
Putting
, we get
![y-4=-z(x-3)](https://tex.z-dn.net/?f=y-4%3D-z%28x-3%29)
Therefore, the required point slope form is
.
no idea if this is what you're looking for but if it is then here's the answer:
Part 1) The mean is 151
Part 2) The mean absolute deviation is 9.1
Step-by-step explanation:
step 1
Find the mean
Sum all the values and divide by the number of values
step 2
Determine the absolute value of subtract the mean from each value
step 3
Find the mean of those distances
----> this number is called the mean absolute deviation (MAD)V