SOLUTION: This needs to be answered in scientific notation and I just don't understand it. The mass of mars is 6.421x10^(20) metric tons.The mass of the sun is 1.998x10^(27) metric tons. abo

Algebra ->  Polynomials-and-rational-expressions -> SOLUTION: This needs to be answered in scientific notation and I just don't understand it. The mass of mars is 6.421x10^(20) metric tons.The mass of the sun is 1.998x10^(27) metric tons. abo      Log On


   

Question 553935: This needs to be answered in scientific notation and I just don't understand it. The mass of mars is 6.421x10^(20) metric tons.The mass of the sun is 1.998x10^(27) metric tons. about how many times the mass of marsis the mass of the sun? Round to the nearest tenth.
Answer by ankor@dixie-net.com(22740) About Me  (Show Source):
You can put this solution on YOUR website!
This needs to be answered in scientific notation and I just don't understand it. The mass of mars is 6.421x10^(20) metric tons.The mass of the sun is 1.998x10^(27) metric tons. about how many times the mass of marsis the mass of the sun? Round to the nearest tenth.
:
Write it as a proportion
%281.998%2810%5E27%29%29%2F%286.421%2810%5E20%29%29
Divide the numerical portion as you do normally, when you divide powers of 10, subtract the exponent of the dividing value, write it in scientific notation
%28.33111%2810%5E%2827-20%29%29%29 = %28.33111%2A10%5E7%29 = the sun is %283.3%2A10%5E6%29 times the mass of mars