Aclass has $90 to spend on a field trip. the field trip costs $2.50 per person and there will be 5 chaperones on the trip. one
student used the inequality 90 > 2.50(x+5) to find x, the number of students that the field trip budget could accommodate.
which best describes the error in the student's inequality?
the expression representing the cost should be 2.50(5x).
the expression representing the cost should be 2.50(x+5x).
the inequality symbol should be instead of > since up to and including 590 may be spent.
the inequality symbol should be s instead of > since less than or equal to $90 may be spent.

Ascientist studied a population of workers to determine whether verbal praise and/or tangible rewards affect employee productivity. in the study, some workers were offered verbal praise, some were offered tangible rewards (gift cards, presents, and some were offered neither. the productivity of each participant was measured throughout the study by recording the number of daily tasks completed by each employee. which inference might the scientists make based on the given information? a.) the number of daily tasks completed by each employee may influence the dependent variable, which is whether the employee receives verbal praise, tangible rewards, or neither. b.) verbal praise and/or tangible rewards may influence the independent variable, which is the number of daily tasks completed by each employee. c.) verbal praise and/or tangible rewards may influence the dependent variable, which is the number of daily tasks completed by each employee. d.) the dependent variables, which are verbal praise and tangible rewards, may influence the number of daily tasks completed by each employee.