document.write( "Question 1002503: \r
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document.write( " Jim travels
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document.write( "6 times faster than Brenda. Traveling in opposite directions, they are
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document.write( "392 miles apart after
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document.write( "3.5 hours. Find their rates of travel.\r
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Algebra.Com's Answer #619387 by Alan3354(69443)![]() ![]() 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. \n" ); document.write( "============= \n" ); document.write( "The combined speed is 392/3.5 = 112 mi/hr \n" ); document.write( "------ \n" ); document.write( "J + B = 112 mi/hr \n" ); document.write( "J = 7B \n" ); document.write( "--- \n" ); document.write( "7B + B = 112 \n" ); document.write( "B = 14 mi/hr (Brenda's speed) \n" ); document.write( "J = 98 mi/hr (Jim's speed) \n" ); document.write( "================================ \n" ); document.write( "PS 6 times faster is not 6 times as fast, it's 7 times as fast. \n" ); document.write( "6 times faster --> a 600% increase \n" ); document.write( "A 100% increase = 2 times as fast. \n" ); document.write( "200% --> 3 times as fast, etc. \n" ); document.write( " \n" ); document.write( " |