Answer:
-x-2; x
2
Step-by-step explanation:
-->
-->
-(x+2); x CAN'T equal 2, because the denominator of the original fraction would be 0, which would make the term undefined.
20/15=N/27
Do cross multiplication.
20x27=540
540/15=39
So the answer ia 39.
I think the answer is -2,I guess?
Answer:
population will be 79806.
Step-by-step explanation:
Population of a town 4 years ago was 50,000
Population of town had grown exponentially and present population is 63,124.
So the formula of the population growth will be

Where
= Final population n = number of years.
= Initial population
r = rate of increase in population per year.
so 63124 = 50,000 


= 1.0813
Now we have to find the population after 4 years from now.
= 
= 
= 63124 × 1.264
= 79806
Therefore, after 4 years from now population will be 79806.
Painter cost when he use the roller.
40:8=5 hours for painting 40 m²
5+1/2 =5 1/2 where 1/2 is time needed for clean upthe roller
total cost is
(5 1/2)*11=55+11/2=60.5 dollars
Painter cost when he use spray gun
40:20=2 hours for painting 40 m²
2+1=3 time with the time needed for clean up the spray gun
total cost is
3*11+5*3=33+15=48 dollars
60.5-48=12.5 dollars
You save is 12 dollars 50 cents