SOLUTION: Infinity Phone Services charges $.10 for every minute of a long-distance phone call and a $.20 connection charge. Long Calls Phone Services charges $.20 for every minute of a long-

Algebra ->  Coordinate Systems and Linear Equations  -> Linear Equations and Systems Word Problems -> SOLUTION: Infinity Phone Services charges $.10 for every minute of a long-distance phone call and a $.20 connection charge. Long Calls Phone Services charges $.20 for every minute of a long-      Log On


   

Question 1172692: Infinity Phone Services charges $.10 for every minute of a long-distance phone call and a $.20 connection charge. Long Calls Phone Services charges $.20 for every minute of a long-distance phone call. They do not have a connection charge. Find the number of minutes for which both phone companies charge the same price.
Answer by ewatrrr(24785) About Me  (Show Source):
You can put this solution on YOUR website!


Hi  

 Let x represent the phone call minutes    

Infinity: .20 + .10x

Long call: .20x 

Find the number of minutes for which both phone companies charge the same price.

.20 + .10x = .20x

.20 = .10x

.20/.10 = x

x = 2  the number of minutes for which both phone companies charge the same 

CHECKING our answer***

.20 + 20 = .20*2  Checks!

Wish You the Best in your Studies.