Answer:
The answer is A. 2/3 =5/8
Step-by-step explanation:
1/(x+5) because the (x-2) is canceled from both the numerator and denominator of the equation.
.2 is 2/10 while .5 is 1/2. 1/2 is much larger than 1/5 (which is 2/10 reduced).
Complete Question
The complete question is shown on the first uploaded image
Answer:
The score of the student is x = 779.42
Step-by-step explanation:
Generally we can mathematically represent the z-score as

Here x is the score of the student
substituting 1045.7 for the Mean, 221.9 for the stDev and -1.2 for z we have

=> 
=> x = -266.28 + 1045.7
=> x = 779.42
Answer:
y = 6/7
Step-by-step explanation:
-3 = 7(y - 9/7)
simply right side
-3 = 7y - 9
then
-3 + 9 = 7y
6 = 7y
y = 6/7