In a class of 20 students, on average, 4 will be left-handed. if a class includes 14 "lefties", estimate how many students are in the class.

  70

Step-by-step explanation:

The number in the class is 20/4 = 5 times the number of "lefties."

  5 · 14 = 70

The class is estimated to have 70 students.

For this case, we must indicate how many students there are in the class knowing that it includes 14 "lefties". For this, we make a rule of three:

20 -------------> 4

x ---------------> 14

Where the variable "x" the number of students in the class.

Thus, if the class includes 14 left-handers, then according to the base average, the class will have a total of 70 students.

70 students

answer: domain and range mean all possible values of x and y that could be substituted to the inequality. a solution means all possible values that make the inequality statement true. so while the range is still all real numbers, the solution is the shaded area, for which y will always be greater than the line of the function.