Problema Solution
The toll to a bridge is $4.00. A three-month pass costs $14.00 and reduces the toll to $0.50. A six-month pass costs $48.00 and permits crossing the bridge for no additional fee. How many crossings per three-month period does it take for the three-month pass to be the best deal?
Answer provided by our tutors
let x = the number of crossings
with a three-month pass the cost is: 14 + 0.50*x
with a six-month pass the cost is: 48
if the three-months pass it the best deal then
14 + 0.50*x < 48
by solving the inequality we find
x < 68
click here to seethe step by step solution of the inequaltiy
the three-months pass is the best deal for less than 68 crossings.