Question 237840: Mercury's average distance from the sun is 57,910,000 km. The Earth is approximately 93,000,000 miles from the sun. What would be the distance of a trip from Mercury to Earth, via the sun? Look out for the units!!! (1 km = 0.62 mi) Express answer in scientific notation. (Round to the nearest thousandths place.)
Answer by College Student(505)   (Show Source):
You can put this solution on YOUR website! Steps:
a. need to convert one of the units to the other in order to add them up
b. since your problem doesn't specify which unit to express the result, I'll convert km into miles.
b. add the miles
c. express answer in scientific notation
.
Problem:
Since 1 km = 0.62 miles...
57,910,000 km *0.62 mi / 1km ...km units cancel...
35,904,200 miles
Now add it to the other distance
35,904,000+93,000,000
128,904,200 miles
Now in scientific notation:
1,289*10^5 miles
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