Determine when both phone companies total to the exact same amount.

Question

Talk-n-Text Inc. offers the following monthly plan: $120 per moth for talking and Internet, and 5 cents per text. Gab and Go Inc. offers an alternative plan: $40 per month for talking and Internet and 15 cents per text. Determine when both plans total to the exact same amount, as well as what that amount is.

Answer 1

C =120+ 0.05T    / first plan

C =40 + 0.15 T   / 2nd Plan

 

 

  120 + 0.05T = 40 + 0.15T

 

 

   80 = 0.1 T

 

   T = 80/ 0.1 = 800      / when used 800 Texr