Answer:
The required function is and the graph of the function is shown below.
Step-by-step explanation:
It is given that A vat contains 18 gallons of liquid when a drain pipe opens and the liquid begins to leave the vat at a rate of 4 gallons per hour.
It means the initial liquid in tank is 17 gallons and rate of change is 4 gallons per hour.
y-intercept is (0,18).
Slope is -4.
The liquid in tank is defined by the function
At y=0 the tank will empty.
The x-intercept is (4.5,0).
Therefore the required function is and the graph of the function is shown below.
Value of a =3
Value of b =5
We are given p(1)=3 and p(2)=19
Putting x =1 to find p(1)
Now putting x=2 as p(2)=19
Solving these equations to find values of a and b
Subtract both equations
So, value of a =3
Now finding value of b bu putting value of a in equation 1
So, Value of b =5
Simply set up a proportion. 1/3 = x/48. Cross multiply afterwards. 48 = 3x. Solve the equation. x = 16. By using proportions which is another form of a ratio you can easily find out that there are 16 adults at the school. Hope this helps :))
Mean:
Median: 63, 66, 67, 68, 73, 74, 76, 78, 80, 83, 86, 87, 88, 89, 89, 89, 93, 93, 95, 99, 100
= 169/2
Mode: 100
Hey mate 1.5miles per hour is your Answer