Question

Your cell phone company charges $0.10 per megabyte of data with a flat fee

Answer 1

Problem:  If you and your friend paid the same amount for the, same number                    of megabytes, How many megabytes did you each use?

Given facts:  company 1  (mine)
                      $0.10 per megabyte
                      $10 flat fee
     
                      Company 2 (friend)
                      $0.25 per megabyte
                       no flat fee. 

method:  division 
Solution: Company 1                             Company 2
              $ 0.10 = 1 megabyte                 $ 0.25 = 1 megabyte
              $10/ $0.10 = 100 megabytes     $ 10/$0.25= 40 megabytes

                                                     (* using $10 as same payment for both)

    
Answer: Company 1                               Company 2
               for $10 = 100 megabytes        $ 10=  40 megabytes    

Answer 2

Answer: You and your friend used 66.7 megabytes.

Step-by-step explanation:

Hi, to answer this question we have to write an equation.

Your cell phone company:

y = 10 + 0.10 m

Where:

y: total cost

m = number of megabytes

Your friend's company:

y = 0.25m

If both paid the same, it means that

y = y

And

10 + 0.10m = 0.25m

Solving for m:

10= 0.25m-0.10m

10= 0.15m

10/0.15=m

66.7 =m

You and your friend used 66.7 megabytes.