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While playing games on a particular smart phone, 1% of the battery is drained every five minutes of game play. The battery starts off at 80% full . This can be represented by b(m)=80-m/5. What does B(75) represent?

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frika

Answer:

B(75) represents the percent of battery full after 75 minutes of game play

Step-by-step explanation:

Let m represent the number of minutes of game play. If  1% of the battery is drained every five minutes of game play, then after m minutes of game play [tex]\dfrac{m}{5}\%[/tex] was drained.

The battery starts off at 80% full. After m minutes the battery will have

[tex]B(m)=80-\dfrac{m}{5}[/tex]

percent full.

When [tex]m=75[/tex] minutes, then

[tex]B(75)=80-\dfrac{75}{5}=80-15=65\%.[/tex]

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