Problema Solution
when jane uses her calling card overseas, the cost of a phone call is $0.75 for the first 3 minutes and $0.12 for each additional minute, after. If jane plans to spend at most $3.60 to make a call, find the greatest possible length of talk time
Answer provided by our tutors
let 'x' represent the greatest possible length of talk time
0.75 + (x - 3)*0.12 = 3.60
by solving we find:
x = 26.75 min
click here to see the step by step solution of the equation:
Since the charging goes by minute, Jane can talk 26 minutes at most.