Answer:
0.98386991
0.9839
Step-by-step explanation:
The standard form is 5x-6y=16
Answer:
5 bars for $4.00
Step-by-step explanation:
10 / 12 = 0.833 repeating
4 / 5 = 0.8
.6/1.0 = 6/10
3 6/10 or 3 3/5
Answer:
77.88 minutes
Step-by-step explanation:
Given that :
Mean (m) = 70
Standard deviation (s) = 10
For 80% of student to complete the exam. In the given time
Using the formula :
Zscore = (X - mean) / standard deviation
80th percentile = 80/100 = 0.8 has a Zscore = 0.7881
0.7881 = (X - 70) /10
0.7881 * 10 = X - 70
7.881 = X - 70
7.881 + 70 = X
77.881 = X
Hence, 77.88 minutes should be given
