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Zanzabum
3 years ago
7

Last week Kellie ran 28 miles this week she ran 32 miles what was the percent change in the number of miles she ran

Mathematics
1 answer:
wel3 years ago
8 0
Kelli ran 4 more miles than the week before, so to find what percent that is of 28, divide.

4 / 28 = 0.142857143, or ~14.29%

Kelli ran 14.2857143% or about 14.29% more miles than last week.
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At the end of 2006, the population of Riverside was 400 people. The population for this small town can be modeled by the equatio
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The correct format of the question is

At the end of 2006, the population of Riverside was 400 people. The population for this small town can be modeled by the equation below, where t represents the number of years since the end of 2006 and P represents the number of people. P = 400 ( 1.2 )^ t Based on this model, approximately what was the increase in the population of Riverside at the end of 2009 compared to the end of 2006?

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Answer:

The increase in the population at the end of 2009 is 291 people

Step-by-step explanation:

We are given the equation as P = 400 ( 1.2 )^ t

where

P = No of People

t= No of Years

it is given that in the year 2006 the population is 400

this will only happen when we take t= 0

so for

Year    value of t

2006-    t = 0

2007-    t  = 1

2008-    t = 2

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No of people in 2009 will be

P = 400(1.2)^3

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Since the equation represents no of people so it can't be in decimals, Therefore the population will be 691

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The increase in the population at the end of 2009 is 291 people.

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