Question

10. The population of a city increases 15% annually. If the present population is 20,700, find the
population a year ago.


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Answer 1

Answer:

17595

Step-by-step explanation:

15%=20700×15÷100

=3105

therefore, 15%=3105

it's one year ago so subtracting 15% from 20700

20700-3105

therefore, the population of one year ago =17595

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Answer 2

Answer:

17595

Step-by-step explanation:

20700×15/100

=3105

therefore,20700-3105

=17595