Answer:
B. 4 teachers : 25 students
Step-by-step explanation:
deberían ser 5 maestros o 20 estudiantes.
I'm not exactly sure, so if I'm wrong please correct me.
The equation is 2kg + x = s
↓
(can be any variable letter)
Answer: Observational study
Step-by-step explanation:
The study illustrated in the question is an observational study. It is referred to as an observational study, because in this case, the price of the individual cereals us not being controlled by the students. They've no control over it.
If it was an experiment, there'll have been a control group and the students will have control over the price. Also, the sampling methods used here is a systematic random sampling.
Answer:
sum
Step-by-step explanation:
Answer is D
sum of constants = 8 + 4 = 12
sum of coefficients = 7 + 3 = 10
12 > 10
