We know that, 1 litre = 1000 ml
Then, 2 litres = 2000 ml
Hence, the required ratio of 1000 ml to 2000 ml be
= 1000 : 2000
= 1 : 2
Answer:
The above expression shows that ratios of the areas of the circles are equal to the square of the ratio of their radii.
Step-by-step explanation:
Radius of first circle 
= 9 inches
Area of first circle = 
Area of first circle = 9 × 9 × π = 81 π
Now, since the radius is multiplied by 2/3 for from a new circle.
∴ Radius of the second circle = 
Area of second circle = 
Area of second circle = 6 × 6 × π = 36 π
Now,
∵ = 9 inches and 
= 6 inches
The above expression shows that ratios of the areas of the circles are equal to the square of the ratio of their radii. i.e., 
Step-by-step explanation:
Original Price = $499
100% of something is the original price. when you mark something up, you are increasing the price. when the clerk marks up merchandise by 28%, they are increasing the price by 28%.
This means that the price is original + markup = 100 + 28 = 128%
Therefore, the retail price is
499 x 128% = $638.72
6 is the correct answer because the thousandths place is a number of 5 and above, which means you move the hundredths place value up by 1. Because the hundredths place value is 9, moving it up by 1 would mean that 0 becomes the place value for the hundredths place and one is added to the tenths place. And because 9 is also the place value of the tenths place, the tenths place becomes 0 and 1 is added to the ones place.
Answer: C. 625 and 81
Step-by-step explanation: A relatively prime pair is a pair in which in both numbers given, the only number that can go into each number is one. In 112 and 36, we know 2 can evenly go into each number because they both end in a positive number (112/2 is 56 and 36/2 is 18.) This means A is incorrect. As for B, 11 can evenly go into each number, leaving you with 25 and 7. B is incorrect. And then there's D. 5 can go into each number giving you 160 and 19. D is incorrect.
C is correct because the only numbers that can go evenly into 81 is 1, 3, 9, 27, and 81. None of these numbers, except one can go into 625 also.
