Mathematics, 08.10.2019 00:30 Kennedy3449
Atown has 5000 people in year t=0. calculate how long it takes for the population p to double once, twice, and three times, assuming that the town grows at a constant rate of(a) 500 people per year.(b) 5% per year. the growth of an animal population, p, is described by the function p=300·2t/20.(a) how large is this population in year t=0? t=20? (b) when does this population reach 1000?
Answers: 3
Answer from: Quest
- "runner b is moving at a slower rate."
- "the graphs shown are graphs of distance(km) against time(min).
the slopes of this graphs are are given by:
slope = (change in y)/(change in x)
= (change in distance)/(change in time)
this is the formula for finding the speed. so, the slope of these graphs represent the speed of the runner.
taking each division in the graph to represent 1 on both axis:
runner a ⇒ speed = (2-0)/(1-0)
= 2/1
= 2 km/min
runner b ⇒ speed = (3-0)/(3-0)
= 3/3
= 1 km/min
this shows that runner b is moving at a slower rate."
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Atown has 5000 people in year t=0. calculate how long it takes for the population p to double once,...
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