They lose 4 yds on each of 3 plays......3 * -4 = -12
then they complete a 9 yd pass.....+ 9
-12 + 9 = -3 <== their change in yardage
But how many people? 30 goes into 6 times or any multiple of 6 could go in 6 rows
Yes, both of these ratios are proportional. You could either plug it into an equation and solve it, or do like I did and divide. If you divide 16 by 12, you get 0.75. If You divide 24 by 18, you also get 0.75, therefore they are equal. The reason why I divided by the numbers that I did is because you're trying to figure out how much it increased and if it was equivalent. They increased 0.75% of their size that they started with. I hope this helps!
Answer: A. 12%
Step-by-step explanation:-
Given : In an exam , Mean score :
Standard deviation :
Let X be a random variable that represents the scores of students.
We assume that the points are normally distributed.
Z-score :
For x = 85, we have
Then using standard normal distribution table, the probability that the students received more than 85 is given by :-
Hence, the percentage of students received more than 85 =12%