Answer:
Pumping gas into take with greater rate of change.
Step-by-step explanation:
Rate of change is equal to change in number of gallons per minutes.
Here we have two case
Case 1: Filling swimming pool with 100 gallons of water in 15 minutes.
So, we find how many gallons fill in 1 minutes.
Case 2: Pumping 12 gallons of gas into tank in 3 minutes.
So, we find how many gallons fill in 1 minutes.
Rate of case 2 is greater than case 1.
Thus, Pumping gas into tank with greater rate of change.
Use the FOIL method
First 4x × -2x = -8x^2
Outside 4x × -5 = -20x
Inside 3 × -2x = -6x
Last 3 × -5 = -15
-8x^2 - 20x - 6x -15 =
Combine like terms
-8x^2 -26x -15
You work out 500-82=418
Next you do 300-61=239
Finally you add 239+412=657
How to divide a whole number by a fraction...
example : 6 / (1/4)....when dividing with fractions, " flip " what u r dividing by, then multiply
6 * 4/1....if u have to, 6 is the same as 6/1
6/1 * 4/1 = 24/1 = 24
another example :
2 / (1/3) =
2/1 * 3/1 =
6/1 = 6
just remember to flip what u r dividing by and not the other number.
