an 8oz cup of water contains 7.5 x 10^24 water molecules. the ocean contains 5.4 x 10^46 water molecules. about how many cups of water are in the ocean.

i get 7.2X10^21 cups.

correct

To find out approximately how many cups of water there are in the ocean, we need to divide the total number of water molecules in the ocean by the number of water molecules in an 8oz cup.

First, let's calculate the number of water molecules in the ocean: 5.4 x 10^46 water molecules.

Next, let's calculate the number of water molecules in an 8oz cup: 7.5 x 10^24 water molecules.

To find the number of cups in the ocean, we divide the total number of water molecules in the ocean by the number of water molecules in an 8oz cup:

(5.4 x 10^46) / (7.5 x 10^24)

To divide numbers in scientific notation, we subtract the exponents:

5.4 / 7.5 = 0.72

And we subtract the exponents of 10:

10^(46 - 24) = 10^22

Therefore, the approximate number of cups of water in the ocean would be:

0.72 x 10^22 cups

Note: This calculation assumes that each cup of water contains the same number of water molecules. In reality, the number of water molecules in a cup may vary slightly.