Answer:
answer is -6=9
Step-by-step explanation:
Answer:
x=46
Step-by-step explanation:
I don’t know the rest of the question so i can’t help with the radius bit sorry
<h2>
Answer:</h2>
Like you said, we need to use <u><em>substitution</em></u> to solve for y.
Now that we've solved for y, we can plug in the number we got into one of the <u><em>original</em></u> equations. (You can choose either equation, but I will use the first one.)
Now we have the solution of this system.
Answer:
7 years (This answer is to the nearest year)
Step-by-step explanation:
The way you could work this out is by trial and error. 11 % a year means that its population increases by 4400 annually. 40,000 X 1.11^1 gives you the amount it would be after one year (44000). I got the 1.11 because of the percentage (0.11) plus the amount you need to do percentage increase (1). Then all you do is keep on going up till you hit the number you need (80,000) after about 7 years the total would have hit 80,000 and would have actually went past it (83046)
