Analyze Percent Charge Over Time

Algebra 1Analyze Percent Charge Over Time

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A cell phone is plugged in to be charged. The table below shows the percent of battery power at a few times after it was plugged in. Use the data to find out. Be prepared to show your reasoning.

Time	Percentage Charged
11:00 a.m.	6%
11:10 a.m.	15%
11:30 a.m.	35%
11:40 a.m.	43%

At what time will the battery be 100% charged?

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- Authors: Lynn Marecek, MaryAnne Anthony-Smith, Andrea Honeycutt Mathis, Jay Abramson, Sharon North, Amy Baldwin, Alyssa Howell
- Publisher/website: OpenStax
- Book title: Algebra 1
- Publication date: Jun 4, 2025
- Location: Houston, Texas
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- Section URL: https://openstax.org/books/algebra-1/pages/4-analyze-percent-charge-over-time

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