document.write( "Question 670783: If a red kite is 100 ft. off the ground and rises at 8 ft. per second and a blue kite is 1890 ft. off the ground and rises at 5 ft. per second, then how long will it take for the red kite to be higher than the blue kite?
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Algebra.Com's Answer #417242 by ankor@dixie-net.com(22740) $\"\"$ $\"About$

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If a red kite is 100 ft. off the ground and rises at 8 ft. per second and a
\n" ); document.write( " blue kite is 1890 ft. off the ground and rises at 5 ft. per second, then how
\n" ); document.write( " long will it take for the red kite to be higher than the blue kite?
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\n" ); document.write( "Let t = rising time of the kites (in seconds)
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\n" ); document.write( "Write a distance equation, (altitude in this case), when the red catches the blue
\n" ); document.write( "they will be at the same altitude
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\n" ); document.write( "Red alt = Blue alt
\n" ); document.write( "8t + 100 = 5t + 1890
\n" ); document.write( "8t - 5t = 1890 - 100
\n" ); document.write( "3t = 1790
\n" ); document.write( "t = 1790/3
\n" ); document.write( "t ~ 597 seconds; 9 min 57 seconds, at the same alt
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\n" ); document.write( "We can say about 10 min for the red kite to be higher than the blue \n" ); document.write( "

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