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.
:
Write it as a proportion
{{{(1.998(10^27))/(6.421(10^20))}}}
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
{{{(.33111(10^(27-20)))}}} = {{{(.33111*10^7)}}} =  the sun is {{{(3.3*10^6)}}} times the mass of mars