18.2: Charging a Phone A cell phone is plugged in to be charged. The table shows the percent of battery power at
some times after it was plugged in.
time percent 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? Use the data to find out and explain or
show
your reasoning.
18.3: How Long Will It Last?
1. The image shows the battery usage of a cell phone 9 hours since it was fully charged.
It also shows a prediction that the battery would last 8 more hours.