The answer is C
negative times negative is equals to positive
We may have 20 peice according to :
5/8=0.6
and 12/0.6
=20 peice i think this is the answer
Answer:
x=10
Step-by-step explanation:
just use ur brain
Answer:
83.85%
Step-by-step explanation:
Given that:
Mean (μ) = 65 months, Standard deviation (σ) = 6 months.
The empirical rule states that about 68% of the data falls within one standard deviation (μ ± σ), 95% of the data falls within two standard deviation (μ ± 2σ) and 99.7% of the data falls within three standard deviation (μ ± 3σ).
For the question above:
68% of the data falls within one standard deviation (μ ± σ) = (65 ± 6) = (59, 71) i.e between 59 months and 71 months
95% of the data falls within one standard deviation (μ ± 2σ) = (65 ± 12) = (53, 77) i.e between 53 months and 77 months
99.7% of the data falls within one standard deviation (μ ± 3σ) = (65 ± 18) = (47, 83) i.e between 47 months and 83 months
The percentage of cars that remain in service between 47 and 59 months = (68% ÷ 2) + (99.7% ÷ 2) = 34% + 49.85 = 83.85%
