SOLUTION: Nick and Jessica leave home going in opposite directions. Nick is walking at 3mph, and Jessica is jogging at 6mph. After how long will they be 3 mi apart? I want to know how to

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Question 833915: Nick and Jessica leave home going in opposite directions. Nick is walking at 3mph, and Jessica is jogging at 6mph. After how long will they be 3 mi apart?
I want to know how to do this problem not to have someone just do it for me so if someone could please email me I would appreciate it. Thanks

Answer by josgarithmetic(39625) About Me  (Show Source):
You can put this solution on YOUR website!
Rate%2ATime=Distance

Nick and Jessica going in opposite directions means that the rate at which they are separating is the sum of their traveling rates. They are INCREASING the distance between them.

In one direction, Nick goes 3%28mile%2Fhour%29%2At%28hours%29;
In the opposite direction, Jessica goes 6%28miles%2Fhour%29%2At%28hours%29, for the same time, t.

You are interested in the situation where and when they are 3 miles apart:
highlight%283t%2B6t=3%29, and be aware, time t is in HOURS, so you'll want maybe, to convert to minutes after solving for t.