We need to isolate z on one side of the equation.
First, add 3/7 to both sides of the equation (this will cancel out the -3/7):
2z < 49 + 3/7
Let's change (49+3/7) into an improper fraction:
2z < 346/7
Divide both sides by 2 to get the answer:
z < 173/7
Survey 50 randomly selected seventh-grade students at each of the district’s middle schools. Then the correct option is A.
<h3>What is a sample?</h3>
A sample is a group of clearly specified components. The number of items in a finite sample is denoted by a curly bracket.
The athletic director of a large school district with about 1,500 seventh-grade students in five different middle schools wants to know which sport is most popular among seventh graders.
The survey method is the best to use will be
Random sampling is the method of selecting the subset from the set to make a statical inference.
Survey 50 randomly selected seventh-grade students at each of the district’s middle schools.
Thus, the correct option is A.
More about the sample link is given below.
brainly.com/question/350477
#SPJ1
Answer:
56
Step-by-step explanation:
Answer:
its 6900000
Step-by-step explanation:
6hue and 388
Answer:
3n-9<23
You can use any variable you want for n
