Question
A battery that lasts for 12 hours has been in use for 7 hours. What percent of the battery life has been used up?
Ask by Reeves Kelly. in the United States
Jan 24,2025
Real Tutor Solution
Tutor-Verified Answer
Answer
58.33% of the battery life has been used up.
Solution
To determine the percentage of the battery life that has been used up, you can use the following formula:
\[
\text{Percentage Used} = \left( \frac{\text{Time Used}}{\text{Total Battery Life}} \right) \times 100\%
\]
**Given:**
- **Time Used:** 7 hours
- **Total Battery Life:** 12 hours
**Calculation:**
\[
\text{Percentage Used} = \left( \frac{7 \text{ hours}}{12 \text{ hours}} \right) \times 100\%
\]
\[
\text{Percentage Used} = \left( 0.5833 \right) \times 100\%
\]
\[
\text{Percentage Used} = 58.33\%
\]
**Conclusion:**
After 7 hours of use, **58.33%** of the battery life has been used up.
Reviewed and approved by the UpStudy tutoring team
Like
error msg
Explain 
Simplify this solution Extra Insights
To find out how much of the battery life has been used up, you can use the formula: (time used / total battery life) × 100. Here, the time used is 7 hours and the total battery life is 12 hours. So, (7/12) × 100 = 58.33%. Therefore, approximately 58.33% of the battery life has been used. To visualize it, think of the battery life as a delicious pie. If you had a 12-slice pie and you’ve eaten 7 of those slices, you’ve consumed just over half of it! Keep an eye on your remaining slices (or battery life) so you can plan when to charge it up again!
