Answer:
a) 
b) 
Step-by-step explanation:
Assuming the complete question : "A town has a population of 1000 people at time t = 0. In each of the following cases, write a formula for the population, P, of the town as a function of year t. (a) The population increases by 50 people a year. (b) The population increases by 5% a year."
Part a
For this case we can use a linear model in order to estimate the population size since we have a fixed increase each year. So our model would be given by:
Where 
on this case since represent the increase per year of the slope for the linear model. And the initial amount is 
, so then the model is:
Part b
For this case we have a rate of increase and when we have this the lineal model is not the most appropiate. So then we can use an exponential model given by:
Where represent the initial population and for this case b is the rate of increase 
since each year we have an increase of 5% and t is the time. So then the model is given by:
Answer:
35%
Step-by-step explanation:
Discount = 450 - 292.50
= $157.50
Discount% = (157.50/450*100 = 35%
4000 that's a weird one
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Answer:
52.16
Step-by-step explanation:
So, Lets find out the discount first. Since the shoes are 30% off, that means the shoes are 70% of their original price, so lets multiply the original price of 69 by .7. 69*.7=48.3
Now to find the sales tax we need to multiply the price we got finding the sale by 1.08 since the sales tax is added on not removed from the price. 48.3*1.08=52.16
The prices after the sale and including tax is 52.16
Answer:
your mixed number would be 1 and 5/18 an improper fraction would be 23/18
Step-by-step explanation:
hope it helps you! :)
