Answer:
x>19 represents ghe solution
Answer:
5 : 6
Step-by-step explanation:
The ratio is ...
girls : boys = 20 : 24
By removing a common factor of 4 from each of these numbers, the ratio can be reduced to lowest terms:
girls : boys = 5 : 6
So, taking 149.98 and subtracting the non-taxable total, 26.95, you are left with 123.03, which to equal 10.07 would have to be multiplied by 0.0819, hence the sales tax is 0.0819.
Answer:
a. 199,389
b. b. From the part A, the question suggests a 0.9% yearly decrease which amounts to 199,389. This answer does not correspond to their recorded figure because the 0.9% decrease was just an average taken over the period. There could be years that the decrease was way smaller than the recorded average, thus using average may not be a good way for calculating population decrease over a period of time.
Step-by-step explanation:
a. Population in 2009 = 192,370
This means that in 2005 the population = 192,370 x 1.009 x 1.009 x 1.009 x 1.009 = 199,389
b. From the part A, the question suggests a 0.9% yearly decrease which amounts to 199,389. This answer does not correspond to their recorded figure because the 0.9% decrease was just an average taken over the period. There could be years that the decrease was way smaller than the recorded average, thus using average may not be a good way for calculating population decrease over a period of time.
