SOLUTION: River C is 300 miles longer than River D. If the sum of their lengths is 5,540 miles, what is the length of each river? help!

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Question 933866: River C is 300 miles longer than River D. If the sum of their lengths is 5,540 miles, what is the length of each river? help!
Answer by stanbon(75887) About Me  (Show Source):
You can put this solution on YOUR website!
River C is 300 miles longer than River D. If the sum of their lengths is 5,540 miles, what is the length of each river?
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Equations:
C = D + 300
C+D = 5540
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Substitute for "C" and solve for "D"::
D+300 + D = 5540
2D = 5240
D = 2620 miles
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C = 5540-2620 = 2920 miles
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Cheers,
Stan H.
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