SOLUTION: Katherine travels 350 miles in the same amount of time it takes Christine to travel 400 miles.
Christine’s average speed is 4 mph greater than Katherine’s. Find Katherine’s speed.
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Question 1110155: Katherine travels 350 miles in the same amount of time it takes Christine to travel 400 miles.
Christine’s average speed is 4 mph greater than Katherine’s. Find Katherine’s speed.
Answer by jorel1380(3719) (Show Source): You can put this solution on YOUR website!
Let k be Katherine's speed, and k+4 be Christine's speed. Then:
350/k=400/k+4
350k+1400=400k
50k=1400
k=28 mph
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