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Ann [662]
3 years ago
11

In​ 2000, a company had 1147 stores nationwide. By​ 2002, this total had grown to 1542. If the number of stores continues to gro

w exponentially at the same​ rate, how many stores will there be in​ 2016?
Mathematics
1 answer:
mr_godi [17]3 years ago
4 0

12226 stores will be there in 2016

<em><u>Solution:</u></em>

<em><u>The growth function is given as:</u></em>

y = a(1+r)^t

Where,

y is the future value

a is the initial value

r is the growth rate

t is the number of years

From given,

In​ 2000, a company had 1147 stores nationwide

By​ 2002, this total had grown to 1542

Therefore,

y = 1542

a = 1147

t = 2000 to 2002 = 2 years

r = ?

<em><u>Substituting we get,</u></em>

1542 = 1147(1+r)^2\\\\(1+r)^2 = \frac{1542}{1147}\\\\(1+r)^2 = 1.34437

Taking square root of both sides

1+ r = 1.1594\\\\r = 1.1594 - 1\\\\r = 0.1594

<em><u>If the number of stores continues to grow exponentially at the same​ rate, how many stores will there be in​ 2016?</u></em>

Therefore,

y = ?

a = 1147

r = 0.1594

t = 2000 to 2016 = 16 years

<em><u>Substituting we get,</u></em>

y = 1147(1 + 0.1594)^{16}\\\\y = 1147(1.1594)^{16}\\\\y = 1147 \times 10.6593\\\\y = 12226.3311 \approx 12226

Thus 12226 stores will be there in 2016

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