519 km....ok, lets convert it to centimeters
there are 1000 meters in 1 km, so in 519 km, there are 519 * 1000 meters then.
there are 100 centimeters in 1 meter, so in (519 * 1000) meters, there are then (519 * 1000) * 100 centimeters.
that's how many centimeters Los Angeles is from San Francisco.
now, the slip rate is 2.1 cm per year.
how many times does 2.1 go into (519 * 1000 * 100)?
well, is just (519 * 1000 * 100) / 2.1.
that many years.
2 negative numbers multiplied together is always positive
I think this is false. You should probably try reading the question first, otherwise you can't try to figure out what the question is asking you to solve in the first place!
Answer:
yes it should be mixed 369