Answer: Let x represent the additional hours Jayce can use his flashlight. The total time the flashlight can work is 14 hours, and he has already used it for 3 hours. Therefore, the inequality that describes the problem is:
x ≤ 14 − 3
Now, solve for x:
x ≤ 11
To complete the sentence:
Jayce can use his flashlight for up to 11 more hours before running out of power.