khynia11
09.05.2021 •
Mathematics
A) Find the percentage of dogs of this breed that weigh less than 48 pounds.
%
b) Find the percentage of dogs of this breed that weigh less than 45 pounds.
%
c) Find the percentage of dogs of this breed that weigh more than 45 pounds
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Ответ:
2009 63.1 - 1.7
2010 63.1 - 1.7*2
2011 63.1 - 1.7*3
x 63.1 - (x - 2008) *1.7
2018 63.1 - (2018 - 2008) * 1.7
63.1 - (10) * 1.7 = 63.1 - 17 = 46.1
Change from 2008 - 2018 = 63.1 - 46.1 = 17
% of change = change * 100 / initial value = 17*100/67.1 = - 25. 3%.
The negative sign indicates that the change was a decline, instead of an increase.
- 25.3%