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Applied Problems: Motion - page 37 / 38

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37 / 38

5(x + 9)

X + 9

Drummer

6x

x

John

Distance

Time

Rate

Dr. John left New Orleans at 12 noon. His drummer left at 1:00 traveling 9 mph faster. If the drummer passed Dr. John at 6:00, what was the average speed of each?

6

5

Dr. John

Drummer

What equation does the picture suggest?

The two distances are equal thus:

6x = 5(x + 9)

6x = 5x + 45

X = 45 mph for Dr. John

X + 9 = 54 mph for the drummer

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