David W. answered 02/07/16
Tutor
4.7
(90)
Experienced Prof
To change units without changing the value, we use the Multiplicative Identity (that is, 1).
In this problem, we have 1 point every 3 seconds, or:
1 = (1 point)/(3 seconds)
When first learning, it really helps to keep the units:
So,
2592000 seconds
(2592000 seconds)*1
(2592000 seconds)*( (1 point)/(3 seconds) )
(2592000/3) points [note: seconds cancel out]
864000 points