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.
Step-by-step explanation:
Therefore, Ronald achieved his goal of 53 kg after 9 months.
Answer:
X=4
Step-by-step explanation:
4*4=16+7=23
Answer:
D. $53.76
Step-by-step explanation:
When calculating discounts and sales tax, you need to first change your percentages to decimals by dividing each by 100:
20%/100 = 0.2
5%/100 = 0.05
Since the shoes are at a 20% discount, you will only pay 80% of the original amount, or: $64.00 x 0.8 = $51.20
However, you also need to pay a 5% sales tax, in addition to the sales price, so you can take the discounted amount and multiply:
$51.20 x 1.05 = $53.76 total cost
