Mathematics, 06.05.2021 20:10 MulletStaton3283

The time it takes to charge the battery of a cell phone is directly proportional to the charge of the battery. The equation, y = 0.21x, is used to approximate the time it takes to charge the battery of a cell phone.

Approximate how long it will take the battery to charge to 100%.

4 hours
7 hours
6 hours
5 hours

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