A direct proportion is any equation where y = mx+b. (i.e., a linear equation)
Each side of 3y = 1/2x can be divided by 3 to get y = 1/6x, satisfying the condition of y = mx+b. (b=0)
In this case, the constant of proportionality would be 1/6.
70 I believe is the correct answer
Let
x-----> the time in minutes
y------> the number of gallons of water
we know that
the unit rates is equal to

the unit rate is equal to the slope of the linear equation
then

<u>Problem</u>
1) How many gallons of water will Elyse use in three minutes in the shower?
For x=3 minutes
substitute in the equation above



<u>the answer is</u>
12.6 gal
Answer:
25
Step-by-step explanation:
Ratios:

Double check:
25(0.36) = 9
I don't know but cool paper where did you get them