Vera is using her phone it battery life is down to 2/5 and it drains another 1/9 every hour how many will her battery last
Answer: We are given that Vera phone's battery life is [tex]\frac{2}{5}[/tex]
Also we know that, every hour phone's battery drains [tex]=\frac{1}{9}[/tex]
Now the number of hours her battery will last is:
[tex]\frac{\frac{2}{5} }{\frac{1}{9} } =\frac{2}{5} \times \frac{9}{1} =\frac{18}{5}= 3.6[/tex]
Therefore her battery will lost for 3.6 hours
