br2oomoorever2asig br2oomoorever2asig

16-11-2016
Mathematics

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At noon, ship a is 90 km west of ship
b. ship a is sailing south at 20 km/h and ship b is sailing north at 10 km/h. how fast is the distance between the ships changing at 4:00 pm?

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bertraxxxx bertraxxxx

16-11-2016

the distance is 120 km

the rate that the distance is changing is 30km per hour

hope this helps

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