Step-by-step explanation:
Given
A container has 19.5 liters of water
A cup can hold 210 ml of water
1 L is equivalent to 1000 ml
So, 19.5 L is equivalent to
So, the number of requires to hold this much water
92.85 implies 92 full cups and 1 cup which is partially filled. Hence, almost 92 cups can be filled completely.
We simply drop the absolute value signs and write whatever is inside
This is because |x-4| is really composed of two equations and it depends on what x is
If x < 4, then we use -(x-4) or -x+4
If x >= 4, then we use x-4
This is from the idea that |x| breaks down into this piecewise function
Replace every x with x-4
Then for each inequality, you would solve for x to get the following
which is the same as