Question

on a mobile phone, the battery charge level is usually displayed as a percentage between 0 and 100%. Erik's mobile is charged 19 percentage points per hour and Alva's mobile is charged at 51 percentage points per hour. both Erik's mobile and Alva's mobile are discharged by 7 percentage points per hour when they are not being charged. When Erik's mobile shows 49% and Alva's 15%, Erik starts charging his mobile. Alva starts charging 45 minutes later. Determine how long after Erik starts charging his mobile that both mobiles show the same percentage.

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Answer to a math question on a mobile phone, the battery charge level is usually displayed as a percentage between 0 and 100%. Erik's mobile is charged 19 percentage points per hour and Alva's mobile is charged at 51 percentage points per hour. both Erik's mobile and Alva's mobile are discharged by 7 percentage points per hour when they are not being charged. When Erik's mobile shows 49% and Alva's 15%, Erik starts charging his mobile. Alva starts charging 45 minutes later. Determine how long after Erik starts charging his mobile that both mobiles show the same percentage.

Expert avatar
Brice
4.8
59 Answers
Erik och Alvas mobiler visar samma laddningsprocent cirka 2,26 timmar efter att Erik börjat ladda sin mobil.

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