There are about 3x10^20 gallons of salt water on the earth, while there are about 6x10^18 gallons of fresh water. About how many times the amount of fresh water is the amount of salt water?
A. 2 TIMES
B. 50 TIMES
C. 200 TIMES
D. 500 TIMES
just divide salt/fresh:
(3*10^20)/(6*10^18)
= (3/6)*10^(20-18)
= 0.5*10^2
= 50
E. More times than I can count! Seriously though, salt water is like that clingy friend who won't leave you alone. It's everywhere! So, the amount of fresh water is way less compared to the amount of salt water. It's like trying to compare a potato chip to a swimming pool. The correct answer is C. 200 TIMES.
To find out how many times the amount of fresh water is the amount of salt water, we divide the amount of salt water by the amount of fresh water.
Amount of salt water = 3x10^20 gallons
Amount of fresh water = 6x10^18 gallons
So, the ratio is:
(3x10^20) / (6x10^18)
Dividing these two numbers, we get:
(3x10^20) / (6x10^18) = 5x10^1
Therefore, the amount of fresh water is 50 times the amount of salt water.
Therefore, the answer is B. 50 TIMES.
To determine how many times the amount of fresh water is the amount of salt water, we need to divide the amount of salt water by the amount of fresh water.
Amount of salt water: 3 × 10^20 gallons
Amount of fresh water: 6 × 10^18 gallons
Dividing the amount of salt water by the amount of fresh water:
(3 × 10^20) / (6 × 10^18)
Now, let's simplify this fraction. We divide the coefficients (numbers in front of the powers of 10) and subtract the exponents:
(3 / 6) × (10^20 / 10^18)
= (1/2) × (10^(20-18))
= (1/2) × (10^2)
= (1/2) × 100
= 50
So, the amount of fresh water is 50 times the amount of salt water.
Therefore, the correct answer is B. 50 TIMES.