Answer:
x=9
Step-by-step explanation:
We cross multiply to get 4x=36. Divide both sides by 4 to get x = 9.
Hope it helped :)
Class 2 scored better on average
<h3>How to determine which class scored better on average?</h3>
The averages and the standard deviations are given as:
Class 1
Mean score = 7.8
Standard deviation = 1
Class 2
Mean score = 8.1
Standard deviation = 0.2
As a general rule, the smaller the standard deviation; the better the average
Class 2 has a smaller deviation
Hence, class 2 scored better on average
Read more about standard deviation at:
brainly.com/question/28061243
#SPJ1
Answer:
It depends how you were taught. You could say it's 11 (eleven) or 2.
Answer: They are similar in that when you multiply 2 fractions, you merely multiply the numerators together and the denominators together they are different in that a division still remains once the multiplication is completed.
Step-by-step explanation: ^
