jaeliabonillamarie jaeliabonillamarie

19-01-2022
Mathematics

contestada

(03.02 MC)The table shows the battery life of four different mobile phones:

Mobile Phone Battery Life
Phone Battery Life (hours)
A 20
B 25
C 10
D 18

If 8.45% of the battery life of each mobile phone is used in a day by a typical user, for which mobile phone is 2.1 hours of battery life used in a day?
Phone A
Phone B
Phone C
Phone D

Respuesta :

idowuayomide idowuayomide

19-01-2022

Answer:

B = 25

Step-by-step explanation:

x/100×8.5=2.1

8.5x/100=2.1

8.5x=100×2.1

8.5x=210

8.5x/8.5=210/8.5

x=24.70

x=25

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