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:
D) The number of bacteria decreases by 7% each hour.
Step-by-step explanation:
Exponential functions describe situations where values do not increase at a linear or constant rate. Adding or subtracting every year or hour will result in a linear function, so A, B, and C are incorrect.
Answer 79
Method trial and error until 158 cheeseburger and 79 hamburger
Answer:
(x/8) + (2x)
Step-by-step explanation:
Let "a number" & "the number" (as they mean the same number) = x
"The Quotient" (meaning divide) of "a number and eight" = x/8
"increased by" (adding) by "twice the number" = + 2x
(x/8) + (2x) is your answer
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It is the right answer, is it is 5 or more you add the number that you are supposed to round, but since the number next to it is 4, you can keep it the same and add the 0's. (I'm a kid, so sorry if there is misspells)