For this case we have to by definition, if "y" varies directly with "x" it is represented as:
Where:
k: It is the constant of proportionality
We have to:
We clear the variable "y":
Thus, the constant of proportionality is:
Answer:
Which expression can be used to find the quotient of 15 and 1/3?
Solution
The quotient of "P" and "Q" is P/Q.
Therefore, the quotient expression of 15 and 1/3 is 
We can rewrite 
Note: If we have fraction in the divisor, we can flip the fraction and multiply with the dividend.
Answer:

Step-by-step explanation:
<u>Slope-intercept form:</u> y = mx+ b
m = slope
b = y-intercept
<u>Rearrange the equation:</u>

<u>Divide each side by -20:</u>


is your simplified, slope-intercept form equation.
#1 87.5% or round up to 88%
#2 50%
#3 75%