SOLUTION: A long distance telephone service charges 10 cents for the first minute and 5 cents for each minute thereafter. Write an equation representing the cost C for any call, using x for

Algebra ->  Inequalities -> SOLUTION: A long distance telephone service charges 10 cents for the first minute and 5 cents for each minute thereafter. Write an equation representing the cost C for any call, using x for      Log On


   

Question 346063: A long distance telephone service charges 10 cents for the first minute and 5 cents for each minute thereafter. Write an equation representing the cost C for any call, using x for its length. Using that equation, how many minutes can you talk on the phone if you don’t want the cost to exceed $5.00?
Answer by mananth(16946) About Me  (Show Source):
You can put this solution on YOUR website!
x mins duration
5 cents/minute
5x per cal
+ 10 cents
...
C= 5x+10
....
5x+10<500 cents
add -10
5x<500-10
5x<490
/5
5x/5 = 490/5
x<98 minutes