2 Answers

Husman · Answer 1 · 2019-05-31T19:43:54+0000

Let x be total hours of battery life. We have been given that battery life of Vera's phone is down to 2/5. So remaining battery life,

1-(2)/(5)=(5-2)/(5)=(3)/(5)

We have been also given that it drains another 1/9 every other hour. Now let us substitute our given information into an equation.

$(1)/(9)\cdot x=(3)/(5)$

Now we will solve for x.

$x=(3\cdot 9)/(5)=(27)/(5)$

x=(5+(2)/(5))hours

Let us convert 2/5 into minutes. We know 1 hour has 60 minutes.

$60\cdot (2)/(5)=24\text{minutes}$

Therefore, remaining battery life will be 5 hours and 24 minutes.

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