Answer:
x= 10
Step-by-step explanation:
(8x+5)+(3x+25)+(4x)=180
15x+30=180
15x=150
x=10
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Answer:
No
No
Each business major student is more likely to be selected than each political science student. Stratified Sampling was used.
Step-by-step explanation:
It is not a random sample nor a simple random sampling because each business major student is more likely to be selected than each political science student. In order for this to be a simple random sampling process, she would have to select 200 out of the full 440 students (260+180). The process applied was stratified sampling.
Answer:
plz make it brainlisted
Step-by-step explanation:
Since the total is 300 and the ratio is 4:1,
Let us suppose the number of adults be 4x and children be x;
According to the question,
4x+x=300
or,5x=300
or,x=(300/5)
or,x=60
So, 60 students attended the show.
<em>For another information, when D > 0, there are 2 real roots.</em>
<em>When D = 0, there is only one real root.</em>
<em>And when D < 0, there are no real roots (also known as imaginary.)</em>
Answer:
7
Step-by-step explanation:
12-(-3)-2(4)
12-(-3)-8
15-8=7
