Answer:
Step-by-step explanation:
1) 2/9 = 185/x
2x = 1665
x = 832.5 or 8.325 meters
2) unit rate is the cost of one unit
i.e a dozen eggs cost $1.20 that
would be 10 cents each
3) 300 tissues for $3.75 vs. 250 for $2.99
one is 1.24 cents per tissue
the other 1.19 ... the 250 package is a better buy
Based on the information given, it can be noted that the problem with the research is the problem of validity.
<h3>
Problems with validity.</h3>
It should be noted that in a research, a problem with validity takes place when there's a lack of reliability of the independent variable.
Also, it is a result of lack of representativeness of the independent variable and a lack of impact of the independent variable.
In this case, the researcher sets out to measure drug use on US college campuses by asking a representative sample of undergraduates whether they are currently receiving federal grants or loans. It should be noted that the question asked doesn't relate to the research.
In conclusion, there's a problem with validity.
Learn more about researches on:
brainly.com/question/25257437
Answer:
Step-by-step explanation:
theres no picture or file
Answer:
B
Step-by-step explanation:
(-2) ^-3 • (-2) ^4 = -2
-2^1 = -2
Hope this helps
Answer:
30 books
Step-by-step explanation:
1. Find what 2/3 of Brett's books is.
2/3 of 72 or 0.667 x 72 = 48
2. Find what 2/3 of Charlie's books is.
2/3 of 27 or 0.667 x 27 = 18
3. Find the difference between 2/3 of Brett's books (48) and 2/3 of Charlie's books (18).
48 - 18 = 30
Adam has 30 books.
