Answer:
In 2010 the population become 206,123,000.
Step-by-step explanation:
Consider the provided equation.
Where P represents the population in millions.
We need to determine the year in which the country had population of 206,123,000.
As P is in millions so divide 206,123,000 by one million.
Substitute P = 206.123 in above equation.
30 year from 1980 the population become 206,123,000.
In 2010 the population become 206,123,000.
4 liters of punch can serve 16.
5 liters of punch will be needed for 20 servings.
7 liters of punch will serve 28.
Step-by-step explanation:
Given,
Ratios of liters of punch to servings = 2:8
Let,
x be the servings for 4 liters.
New ratio of liters of punch to servings = 4:x
Using proportion;
Ratio :: New ratio
Product of mean = Product of extreme
Dividing both sides by 2
4 liters of punch can serve 16.
Let,
y be the liters of punch for 20 servings.
New ratio = y:20
Using proportion;
Product of mean = Product of extreme
Dividing both sides by 8
y=5
5 liters of punch will be needed for 20 servings.
Let,
z be the number of servings for 7 liters of punch.
New ratio = 7:z
Using proportion
Product of mean = Product of extreme
Dividing both sides by 2
7 liters of punch will serve 28.
Keywords: ratio, proportion
Learn more about ratios at:
#LearnwithBrainly
•Convert 20% to decimal.
To convert a number to a decimal, divide by 100
20 divided by 100= 0.2
•$171.70 x 0.2=34.34
•171.70 + 34.34=206.04
The amount of the markup is $34.34
I hope I did this right and it helps, calculating markup becomes easier to do when you get more familiar with it.
Should be $448
400 x 0.02 x 6 = 48
48 + 400 = 448
Answer:
D = 0
Step-by-step explanation:
D = b^2 - 4ac =
= 6^2 - (4*1*9) =
= 36 - 36 = 0