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?
has been in use for 7 hours. What
percent of the battery life has been
used up?
Ask by Chan Campos. in the United States
Jan 24,2025
Upstudy AI Solution
Tutor-Verified Answer
Answer
Approximately 58.33% of the battery life has been used up.
Solution
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Beyond the Answer
To find out the percentage of the battery life that has been used up, you can use the formula:
(Used Time / Total Time) x 100.
In this case, it would be (7 hours / 12 hours) x 100, which equals approximately 58.33%. So, about 58.33% of the battery life has been used up!
Now, don’t fret if percentages feel tricky at first! Just remember that you can always break it down into smaller pieces. Even using a calculator or a simple fraction can help! Common mistakes include forgetting to multiply by 100 after calculating the decimal—don’t let that trip you up!
