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#12065

inequalities

applications

hard

70 sec

A local car wash offers a monthly unlimited wash pass for $45. Without the pass, the cost per wash varies between $10, $12, and $15 based on the type of wash. What is the minimum number of car washes a person would need to get in a month for the unlimited pass to be cheaper than paying for each wash individually?

• Up to 5 characters (6 if negative). Only numbers, decimal (.), fraction (/), negative (-).
• Fractions must be in lowest terms.
• Mixed numbers must be converted to improper fractions.