Some of the students at Georgia middle school like to walk to and from school. They always walk unless it rains. Let d be the distance in miles from a student's home to the school. Write 2 different expressions that represent how far a student travels by walking in a 2 week period if there is one rainy day each week.
Expression 1: The student walks to school and back home every day except for the rainy day each week. So, in a 2-week period, the student would walk a distance of 2d miles.
Expression 2: On the rainy day each week, the student does not walk to or from school. So, in a 2-week period, the student would walk a distance of (13/14) * 2d miles, since there are 14 days in 2 weeks and the student walks on 13 out of those 14 days.
most school weeks are 5, not 7, days
so we are looking at 10 days of school in two weeks
but it rains one day a week so the student only walks on 8 days (assuming it never, ever, rains on Saturday or Sunday !
Expression 1: The student walks to school and back home every day except for the rainy day each week. So, in a 2-week period, the student would walk a distance of 2d miles for 8 days.
Expression 2: On the rainy day each week, the student does not walk to or from school. So, in a 2-week period, the student would walk a distance of 16d miles, since they walk 2d miles on each of the 8 walking days.