Answer:
0.0475
Step-by-step explanation:
Given that :
Area To the left :
P(Z < 550) = 0.0475 ; that is proportion who scored better than of 550 has a Zscore of 0.0475.
Hence, percentage of students who scored better than she did will be 0.0475
Answer:
The number of units decreased by 
.
Step-by-step explanation:
Initially, 470 units were sold. The following 429 units were sold, meaning this was 
less units than last year. Thus, the number of units sold decreased and the percent of decrease is:
Answer: 44 degrees, x equals
Step-by-step explanation: Attached below is my work.
Answer:
The discount price for a T-shirt cost $14.40.
Step-by-step explanation:
There are more than one ways to solve this problem, I used this method, but your teacher/instructor may uses different method.
First, you will need to find the 1% is, so what I do is to $18 divide 100% (which will split 18 into every single percentage representing). You should get 0.18.
Then, you will multiple 20 from 0.18, that mean you are finding the amount of 20% discount. You should get 3.6.
Now that we found the amount of discount, we need to apply it. We can do that by the orginal price, which is $18, and minus the 20% discount, which is $3.6, (18-3.6=14.4).
$14.4 will be the discounted price for that T-shirt.
I hope that helped!
