Problema Solution
Maria has a summer job as a tennis instructor to earn her collage tuition. She gets paid $6.50 per hour for the first 40 hours and $9.75 for each hour in the week worked more than 40 hours. This summer her goal is to earn al least $338.00 per week. How many hours of over time per week will she need to archive her goal?
Answer provided by our tutors
Let 'x' be the number of over time hours per week.
Her weekly earnings are
6.5*40 (regular salary for 40 years per week)
+
9.75*x (money she earns over time)
that is
6.5*40 + 9.75*x >= 338 (at least $330.00 per week)
x >= (338 - 6.5*40)/9.75
x >= 5
She needs to work at least 5 hours over time per week to archive her goal.