SOLUTION: The distance from the Mercury to the sun is 28.5 million miles. The distance from Neptune to the sun is 2.8 billion miles. Express the distance between Mercury and Neptune in scien

Algebra ->  Square-cubic-other-roots -> SOLUTION: The distance from the Mercury to the sun is 28.5 million miles. The distance from Neptune to the sun is 2.8 billion miles. Express the distance between Mercury and Neptune in scien      Log On


   

Question 1139879: The distance from the Mercury to the sun is 28.5 million miles. The distance from Neptune to the sun is 2.8 billion miles. Express the distance between Mercury and Neptune in scientific notation. Please explain by steps. Thanks
Answer by josmiceli(19441) About Me  (Show Source):
You can put this solution on YOUR website!
2.8 billion is +2.8%2A10%5E9+
28.5 million is +2.85%2A10%5E7+
------------------------------------
+2.8%2A10%5E9+-+2.85%2A10%5E7+
+2.8%2A10%5E9+-+.0285%2A10%5E9+
+%28+2.8+-+.0285+%29%2A10%5E9+
+2.7715%2A10%5E9+ mi
------------------------------------
Note that when you have +a%2A10%5Eb+
if you increase +b+. then you must
move the decimal point of +a+ the same
number of places
to the left so you make +a+
smaller