Answer:
3.5 km
Step-by-step explanation:
We know that 1000 meters = 1 kilometer
500 meters * 1 kilometer/1000m = 500/1000 kilometer = .5 km
He goes .5 km per day
There are 7 days in 1 week, so multiply by 7
7 * .5 km = 3.5 km
The figure below shows the standard normal distribution or "bell-shaped" curve, plotted against the z-score.
The z-score is defined as
z = (x - μ)/σ
where
x = nrandom variable
μ = mean
σ = standard deviation.
As z-values decrease, areas to the left of z decrease as shown by the shaded area.
Answer:
Areas to the left of z decrease.
Calculate both of those per hour:
2/3 crate / hour
1.25 crates / 2 hours = 5/8 crates / hour
2/3 + 5/8 = 16/24 + 15/24 = 31/24 per hour =
124 / 24 crates in 4 hours = 5 (4/24) crates =
5 (1/6) crates per 4 hours