Answer:
nth day: w:x:(y-2(n-1))
Step-by-step explanation:
Let Original time = w:x:y
Where w is the hours, and x is the minutes, and y is the seconds.
Sadie's time on the first date: w:x:(y-2)
Second day: w:x:(y-4)
Third day: w:x:(y-6)
and so on
nth day: w:x:(y-2(n-1))
You can use two method
First method: form a triangle from x = 4 to x = 7. See vertically and horizontally (count the squares). It would be 5 and 3. Therefore 5/3 would be the slope.
Second method: use the slope formula
Determine 2 points on the graph
(4,0) and (7,5)
Formula: (y2-y1)/(x2-x1)
(5-0)/(7-4) = 5/3
The slope is 5/3
Y/3 < -1
y < -1 * 3
y < -3
hope this helped, God bless!
