dpaul4287
01.07.2019 •
Mathematics
Over a ten year period, the population of one city changed from 3.2 million to 2.8 million. what was the percent change in the city's population?
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Ответ:
.4/3.2
.125 million
Ответ:
The answer is -12.5% decrease. 3.2 - 2.8 is equal to .4, then divide .4 by total population (3.2), and you get .125. To get a percent multiply by 100.
Ответ:
29/7 or 4 1/7
Step-by-step explanation:
4x+3x-8=14+7
7x-8=14+7
7x-8=21
7x=29
x=29/7 or 4 1/7