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A battery was charged. When the charging began, it was 23 percent full. After 30 minutes of charging, the battery was 89 percent full.

How fast was the battery charged?
How long did it take the battery to be fully charged?

The first question has to be shown as a percent.
The second question has to be shown in minutes.

Respuesta :

onyebuchinnaji

The rate at which the battery was charging is 2.2 % per minutes.

The time taken for the battery to fully charged is 35 minutes.

Rate at which the battery was charging

The rate at which the battery was charging is calculated as follows;

  • Initial amount of charge = 23%
  • Charge after 30 minutes = 89%

Percentage of charge gained in 30 minutes = 89 - 23   = 66 %                                                  

Charging speed of battery = 66/30 = 2.2 % per minute

Time taken for the battery to completely charged

The remaining percent for the battery to completely charged;

= 100% - 23%

= 77%

time taken to charge 77% = 77% / (2.2% /min) = 77/2.2 min = 35 minutes

Thus, the rate at which the battery was charging is 2.2 % per minutes.

The time taken for the battery to fully charged is 35 minutes.

Learn more about rate of charging battery here: https://brainly.com/question/4419121

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