-28xy/4
-7xy
Therefore, the first answer is correct.
Hope this helps!
Answer:
x=45
Step-by-step explanation:
30+15=45
To rewrite it as a single exponent we have to simply add the exponents since we have an equal base.
The answer is 9^7
Answer:
Town B will eventually overtake Town A
in 1990 Town B will have a larger population
Step-by-step explanation:
To work out how big town A will be in 1990 you need to do 200 + (200x40) because you add 40 years worth of increased population onto the starting population
To work out how big town B will be in 1990 you need to use the equation 200 X 1.1^40 because to work out plus 10 percent you need to do 1.1 and do it to the power of 40 for how many years
in 1990 town a will have a population of 8200 and town B will have a population of 9051.85
