Answer:
Jackson can play for 21 more minutes.
Step-by-step explanation:
If 9 minutes = 30% or 0.3
then we can set up a ratio to cross multiply.
(9/30) = (x/100)
then croos multiply and divide to isolate and solve for x.
(9 * 100) / 30 = 30
That means 100% of Jackson's time is 30 minutes.
30 - 9 = 21. So jackson can play for 21 more minutes before he uses all of his time.
But by the time he figures all of this out he'll probably have to turn it off anyways :)
