two girls went shopping and spent $334. one girls spent $16 more thent the other girl did. how much did each spend
1 answer:
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If is a random variable representing test scores, then the 41st percentile is the score
such that
. Transform
to the random variable
that follows the standard normal distribution via
:
The -score for the 41st percentile is about -0.2275, so
Let
t = time, hours
h = height, feet
At 1 PM, the time and height are respectively
t₁ = 1 hour
h₁ = 4400 feet
At 4 PM, the time and height are respectively
t₂ = 4 hours
h₂ = 5600 feet
By definition, the mean hourly change in elevation is
Answer: 400 feet per hour
t = time, hours
h = height, feet
At 1 PM, the time and height are respectively
t₁ = 1 hour
h₁ = 4400 feet
At 4 PM, the time and height are respectively
t₂ = 4 hours
h₂ = 5600 feet
By definition, the mean hourly change in elevation is
Answer: 400 feet per hour