How many times greater is the following? Give the answer in proper scientific notation.
The body of a 154-pound person contains approximately 2 x 10^-1 milligrams of gold and 6 x 10^1 milligrams of aluminum. Based on this information, the number of milligrams of aluminum in the body is how many times the number of milligrams of gold in the body?
The area of Canada is approximately 1 x 10^7 square miles.
The area of Italy is approximately 3 x 10^5 square miles.
Which statement best describes the relative sizes of the countries?
The Earth is approximately 9.3 x 10^7 miles from the sun. Uranus is approximately 1.8 x 10^9 miles from the sun. About how many times farther from the sun is Uranus than Earth?
The body of a 154 pound person contains approximately 4 × 10^-1 milligrams of gold and 16 × 10^1 milligrams of aluminum. Based on this information, the number of milligrams of aluminum in the body is how many times the number of milligrams of gold in the body?
The diameter of the sun is approximately 1.39 x 10^6 km. The diameter of Mercury is approximately 4.88 x 10^3 km. About how many times larger is the diameter of the sun that the diameter of Mercury?