# math

THE DISTANCE FROM EARTH TO MOON IS ABOUT 22^4 MILES . THE DISTANCE FROM EARTH TO NEPTUNE IS ABOUT 22^7 MILES . WHICH DISTANCE IS GREATER ? ABOUT HOW MANY TIMES GREAT ?

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The earth-moon distance is 22*10^4 miles
The earth-Neptune distance is 22*10^7 miles
The numbers tell you which is farther away. For the "number of times", divide the larger number by the smaller number.

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2. Using mean distances, the mean earth-moon distance is ~239x10^3 miles.

The mean distance of the earth to the sun is ~93x10^6 miles.

The mean distance of neptune from the sun is 2,790x10^6 miles.

Therefore, the mean earth-neptune distance could be 2,696x10^6 miles when they are both on the same side of the sun or 2,883x10^6 miles when they are on opposite sides of the sun.
The mean earth-neptune distance might then be considered to be ~2,790x10^6 miles.

Clearly, the earth-neptune distance is greater. The mean earth-neptune distance is ~11,673 times greater than the earth-moon distance.

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3. Thanks to Will for catching my error in the Neptune distance. I was assuming the question only had an exponent notation error.

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4. 45

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