The answer is 9 by the way. Draw a circle with sixty slices, shade in 15% or 9 slices.
Answer:
160
Step-by-step explanation:
- 8
- 16
- 24
- 32
- 40
- 48
- 56
- 64
- 72
- 80
- 88
- 96
- 104
- 112
- 120
- 128
- 136
- 144
- 152
- 160
Set up a proportion.
pounds / milligrams of medicine
195/279 = 130/x
195x = 279 times 130
195x =36,270
x = 36,270/195
x = 186
A patient weighing 130 pounds needs 186 milligrams of medicine.
Answer: m = 16
Step-by-step explanation:
2m² + 16 = 2m
2m² - 2m = 16
m = 16
The empirical rule states that in a normal distribution,
68% of data is within 1 std deviation of the mean
95% of data is within 2 std deviation of the mean
99.7% of data is within 3 std deviation of the mean
In this case 95% of the cases would be within two std deviations of the mean
mean - 8 and mean + 8
72 - 8 = 64 and 72 + 8 = 80
then 95% of the scores are between 64% and 80% on the test.
