Jack rolled down at a speed of about two feet per foot of forward distance.x = 2y
The total vertical distance covered by Jack and Jill is 30 feet: x + y = 30
It says that Jack's distance is twice Jill's distance, reflecting that Jack rolled down at a speed of about two feet per foot of forward distance. So, for every foot Jack moves forward, he descends two feet down the hill.
The relationship between Jack's distance (x) and Jill's distance (y):
Jack rolled down at a speed of about two feet per foot of forward distance.
Equation: x = 2y
The total vertical distance covered by Jack and Jill is 30 feet:
Equation: x + y = 30