Answer:
z = 10.
Step-by-step explanation:
1/ z = 4/5 / 8
1/z = 4/40
1/z = 1/10
z = 10 .
Answer:
1
Step-by-step explanation:
<em>a</em> = 8 - a train arrives at the station once every 8 minutes, so for any given 8 minute interval, a randomly selected train has uniform probability of arriving at the station at some point in this time.
<em>f(x)</em> = 1/8 - the area under the graph of <em>f(x)</em> must be equal to 1. This area corresponds to a rectangle with length <em>a</em> = 8 and height <em>x</em> such that 8<em>x</em> = 1. Solving for <em>x</em> gives 1/8.
<em>P</em> = 5/8 - this is equal to the area under the graph over the interval [0, 5], which is the area of a rectangle with length 5 and height 1/8.
Store A, which is $0.97/pound (1.94/2)
Store B is $3.22, Store C is $1.83, and Store D is $2.64
