document.write( "Question 76895: Help please. I think I know the equation, but not sure. I think the equation is Speed = distance/time\r
\n" ); document.write( "\n" ); document.write( "Brenda and her husband Randy bicycled cross-country together. One morning Brenda rode 30 miles. By traveling only 5 miles per hour faster and putting in one more hour, Randy coverd twice the distance Brenda covered. What was the speed of each cyclist? \n" ); document.write( "

Algebra.Com's Answer #55120 by Edwin McCravy(20054) $\"\"$ $\"About$

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document.write( "Help please. I think I know the equation, but not sure. \r\n" );
document.write( "think the equation is Speed = distance/time \r\n" );
document.write( "Brenda and her husband Randy bicycled cross-country together.\r\n" );
document.write( "One morning Brenda rode 30 miles. By traveling only 5 miles \r\n" );
document.write( "per hour faster and putting in one more hour, Randy covered\r\n" );
document.write( "twice the distance Brenda covered. What was the speed of \r\n" );
document.write( "each cyclist?\r\n" );
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document.write( "Make this chart:\r\n" );
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document.write( "        DISTANCE   RATE    TIME\r\n" );
document.write( "Brenda   \r\n" );
document.write( "Randy   \r\n" );
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document.write( ">>...Brenda rode 30 miles...<<\r\n" );
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document.write( ">>...Randy covered twice the distance Brenda covered...<<\r\n" );
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document.write( "So fill in 30 for Brenda's distance and twice that, or 60\r\n" );
document.write( "for Randy's distance:\r\n" );
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document.write( "        DISTANCE   RATE    TIME\r\n" );
document.write( "Brenda   30         \r\n" );
document.write( "Randy    60       \r\n" );
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document.write( "Let x be Brenda's rate (speed). Fill that in\r\n" );
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document.write( "        DISTANCE   RATE    TIME\r\n" );
document.write( "Brenda   30         x     \r\n" );
document.write( "Randy    60      \r\n" );
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document.write( ">>...By traveling only 5 miles per hour faster...Randy...<<\r\n" );
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document.write( "So fill in Randy's speed as x+5\r\n" );
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document.write( "        DISTANCE   RATE    TIME\r\n" );
document.write( "Brenda   30         x      \r\n" );
document.write( "Randy    60        x+5    \r\n" );
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document.write( "Now use TIME = DISTANCE/RATE to fill in the rest of the\r\n" );
document.write( "chart:\r\n" );
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document.write( "        DISTANCE   RATE    TIME\r\n" );
document.write( "Brenda   30         x      \r\n" );
document.write( "Randy    60        x+5    \r\n" );
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document.write( "To make the equation, we look to see what we haven't used:\r\n" );
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document.write( ">>...putting in one more hour, Randy...<< \r\n" );
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document.write( "So Randy's time = Brenda's time + 1 hour\r\n" );
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document.write( "Can you solve that?  If not post again asking how.\r\n" );
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document.write( "Answer: x = 10\r\n" );
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document.write( "So Brenda's speed = x = 10mph\r\n" );
document.write( "Randy's speed = x+5 = 10+5 = 15mph.\r\n" );
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document.write( "Edwin

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