If you meant that 1 ball can complete a full rotation in 120 mins then to have a 180 min rotation you need 1.5 balls.
Yes they both are, obviously since their aligned straightly and with he right angle
Step-by-step explanation:



Answer:
y =
x + 
Step-by-step explanation:
The equation of a line in slope- intercept form is
y = mx + c ( m is the slope and c the y- intercept )
Rearrange 10x - 20y = - 3 into this form
Subtract 10x from both sides
- 20y = - 10x - 3 ( divide all terms by - 20 )
y =
x -
, that is
y =
x +
← in slope- intercept form