Answer:
Alright well solve for y by simplifying both sides of the equation then isolating the variable
Exact form: y = - 13/2
Decimal form: y = - 6.5 Hope this helps have a nice day :)
Step-by-step explanation:
It will take approximately 17 1/2 years for the city to reach a population of 1,000,000.
Step by Step Explanation:
7% of 450,000 is 31,500
450,000 to 1,000,000 means you need another 550,000 people in your population.
So take 550,000 divided by 31,500, which equals 17.46, which then rounds up to 17.5 years.
17.5 x 31,500= 551,250
That is how long it will take to reach 1,000,000 population count when the population only increases 7% each year.
Based on the given above, the correct answer would be <span>x-30y=100 and 10y=x-20, the first option.
So how do we know that this is the correct option. So, let us check
0.01x - 0.3y = 1 <<multiply both sides by 100 (since there is 2 decimal places after the decimal point
The result for this would be x - 30y = 100 (So this is correct)
Next,
y = 0.1x -2 << multiply both sides by 10 since there are only 2 decimals places after the decimal point
The result would be 10y = x - 20 (So this is correct)
Hope that answer helps</span>
