Kita's phone had a fully charged battery. With normal usage her phone will last 18 hours. How much time is left on Kita's phone battery with 12% charge remaining?

Respuesta :

Answer: 2.16 hours

?/18=12%/100

18x12%=218%

218%÷100=2.18 hours

The time left on Kita's phone battery with 12% charge remaining is 2.16 hours

Given:

fully charged battery = 18 hours

12% charge = x hours

ratio of battery to number of hours

100% : 18 hours = 12% : x hours

100/18 = 12/x

cross product

100 × x = 18 × 12

100x = 216

divide both sides by 100

x = 216/100

x = 2.16 hours

Therefore, the time left on Kita's phone battery with 12% charge remaining is 2.16 hours

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