SOLUTION: She is charging her Phone and tablet at the same time. The phone has 5% of charge left and charges at a rate of 5% every 12 minutes. The tablet has 50% charge left at a rate of 10%

Algebra ->  Coordinate Systems and Linear Equations  -> Linear Equations and Systems Word Problems -> SOLUTION: She is charging her Phone and tablet at the same time. The phone has 5% of charge left and charges at a rate of 5% every 12 minutes. The tablet has 50% charge left at a rate of 10%      Log On


   

Question 1091133: She is charging her Phone and tablet at the same time. The phone has 5% of charge left and charges at a rate of 5% every 12 minutes. The tablet has 50% charge left at a rate of 10% every 30 minutes. Write a system of equation to represent this situation.
Answer by ikleyn(52878) About Me  (Show Source):
You can put this solution on YOUR website!
.
1.  The phone percent charging 

        = 0.05+%2B++%280.05%2F12%29%2At     expressed as the decimal fraction,   or

        =  5+%2B+%285%2F12%29%2At        expressed as percentage,

    where t is time in minutes.



2.  The tablet percent charging 

        = 0.5+%2B++%280.1%2F30%29%2At      expressed as the decimal fraction,   or

        =  50+%2B+%2810%2F30%29%2At       expressed as percentage,

        =  50+%2B+%281%2F3%29%2At,       expressed as percentage,

    where t is time in minutes.

Solved.