A because you can have many different results
it’s system of substitutions ?
so try
a = 2
b = 5
Answer:
B.77.4%
Step-by-step explanation:
Mean wage (μ) = $4.50
Standard deviation (σ) = $0.50
For nay given salary X, the z-score is given by:

For X = $3.75, the z-score is:

For X = $5.00, the z-score is:

A z-score of -1.5 corresponds to the 6.68th percentile, while a score of 1 corresponds to the 84.13th percentile. Therefore, the percentage of workers getting paid between $3.75 and $5.00 an hour is:

The answer is alternative B.77.4%
Answer:
60 km/hr
Step-by-step explanation:
Speed = distance / time
Speed = 360 km / 6 hr
Speed = 60 km/hr
Answer:
3 pounds for 90 cents.
Step-by-step explanation:
The 5 pound bag costs 32 cents a pound
The 3 pound bag is 30 cents a pound