Posted by **jazz** on Saturday, November 1, 2008 at 9:47pm.

A cruise ship travelled 84 km in 3.5 h. At this rate, how long will it take to travel 1050 km?

- math math math! -
**Ms. Sue**, Saturday, November 1, 2008 at 10:02pm
First, let's figure out how many km the ship travels in 1 hour.

84 / 3.5 = 24 km

It travels 24 km in 1 hour.

Next, divide: 1050 / 24 = 43.75 hours or 1 day and 19.75 hours.

Another way to do this problem is to set up a proportion and cross multiply.

84 / 3.5 = 1050 / x

84x = 3675

x = 43.75

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