SOLUTION: After driving 165km, 3/7th of a trip is completed. How long is the total​ trip? How many more kilometers must be driven to complete the​ trip?

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Question 1083754: After driving 165km,
3/7th of a trip is completed.
How long is the total​ trip? How many more kilometers must be driven to complete the​ trip?
Answer by josmiceli(19441) About Me  (Show Source):
You can put this solution on YOUR website!
Let +d+ = distance in km of total trip
+165+=+%28+3%2F7+%29%2Ad+
+d+=+%28+7%2F3+%29%2A165+
+d+=+7%2A55+
+d+=+385+
The total trip is 385 km
+385+-+165+=+220+
220 km must be driven to complete trip