SOLUTION: Hello. Storm research: During a storm, two teams of scientists leave a university at the same time to search for tornadoes. The first team travels east at 20 mph and the second

Question 178619: Hello.
Storm research: During a storm, two teams of scientists leave a university at the same time to search for tornadoes. The first team travels east at 20 mph and the second travels west at 25 mph, as shown in the illustration. If their radios have a range of 90 miles, how long will it be before they lose radio contract?
Thanks.
H.C.
Answer by stanbon(75887) (Show Source): You can put this solution on YOUR website!
Storm research: During a storm, two teams of scientists leave a university at the same time to search for tornadoes. The first team travels east at 20 mph and the second travels west at 25 mph, as shown in the illustration. If their radios have a range of 90 miles, how long will it be before they lose radio contract?
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Let the time be "x" hrs.
Equation:
distance east + distance west = 90 miles
20x + 25x = 90
45x = 90
x = 2 hrs (after two hrs. they will be 90 miles away from one another)
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Cheers,
Stan H.
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