Dragonskeld
05.02.2020 •
Mathematics
The population of a village has a constant growth of 5% every year. if its present population is 1,04,832, what was the population two years ago?
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Ответ:
95086
Step-by-step explanation:
We let the population one year ago be x, the relationship between x and the present population is;
(105/100)*x = 104832
This is because the present population exceeds the population one year ago by 5%.
therefore,
1.05*x = 104832
x = 99840
We now let the population two years ago be y, the relationship between y and the population one year ago is;
(105/100)*y = 99840
This is because the population one year ago exceeds the population two years ago by 5%.
Therefore,
1.05*y = 99840
y = 95085.7
Rounding to the nearest whole number;
95086
Ответ:
x=-4, Give brainliest please
Step-by-step explanation:
Step 1: Add 8.4x to both sides.
2.1x+45.2 = -8.4x +3.2
+8.4x +8.4x
10.5x+45.2=3.2
Step 2: Subtract 45.2 from both sides.
10.5x + 45.2 = 3.2
-45.2 -45.2
10.5x=−42
Step 3: Divide both sides by 10.5.
=
x=−4