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Question 1002503:
Jim travels
6 times faster than Brenda. Traveling in opposite directions, they are
392 miles apart after
3.5 hours. Find their rates of travel.
Answer by Alan3354(69443)   (Show Source):
You can put this solution on YOUR website! Jim travels 6 times faster than Brenda. Traveling in opposite directions, they are 392 miles apart after 3.5 hours. Find their rates of travel.
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The combined speed is 392/3.5 = 112 mi/hr
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J + B = 112 mi/hr
J = 7B
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7B + B = 112
B = 14 mi/hr (Brenda's speed)
J = 98 mi/hr (Jim's speed)
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PS 6 times faster is not 6 times as fast, it's 7 times as fast.
6 times faster --> a 600% increase
A 100% increase = 2 times as fast.
200% --> 3 times as fast, etc.
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