5/8 because out of all students, there are 5 boys
(and most likely) 3 girls.
1/3x +2/3x>-3/4x+1/3
1/3x+2/3x+3/4x<1/3
1/3x ×4= 4/12
2/3x ×4= 8/12
3/4 ×3= 6/12
18/12x<1/3
x<.22
Answer:
8
Step-by-step explanation:
Since you didn't give an amount of time, we can't give an exact value. However, I can help you with the steps so you can get the correct answer.
First, you need to find the correct z-score. Then, use a standard normal distribution table to find the percent.
Let the time that you are looking for equal X.
The formula for your z-score is:
(x - 8.7) / 2.1 = z-score
Answer:
its 2
Step-by-step explanation: