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TIME REMADUNG
48:15
A dance student wants to know the favorite type of dance class for students at The Dance Academy. She surveys each student
in her ballet class. In which way could the results of her survey be most improved?
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She could sample an equal number of students in each type of dance class.
She could sample a proportional number of students in each type of dance class
She could sample one student in each type of dance class
She could sample one teacher from each type of dance class.
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answer: procent 54 wynosi 33,33%

the system of inequalities is

step-by-step explanation:

step 1

find the equation of the dashed line

we have the points

(0,0) and (3,1)

the line passes through the origin, so, is a direct variation

find the slope

the equation of the dashed line is

the solution of the inequality a s the shaded area above the dashed line

therefore

the equation of the inequality a is

step 2

find the equation of the solid line

we have the points

(4,0) and (0,4)

find the slope

the equation of the solid line is

the solution of the inequality b s the shaded area below the solid line

therefore

the equation of the inequality b is

step 3

the system of inequalities is