document.write( "Question 268891: On Saturday morning, Lynn walked for 2 hours and then ran for 30 minutes. If she ran twice as fast as she walked and she covered 12 miles altogether,then how fast did she walk? \n" ); document.write( "

Algebra.Com's Answer #197198 by ankor@dixie-net.com(22740) $\"\"$ $\"About$

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On Saturday morning, Lynn walked for 2 hours and then ran for 30 minutes.
\n" ); document.write( " If she ran twice as fast as she walked and she covered 12 miles altogether,then how fast did she walk?
\n" ); document.write( ":
\n" ); document.write( "Let s = L's walking speed
\n" ); document.write( "then
\n" ); document.write( "2s = L's running speed
\n" ); document.write( ":
\n" ); document.write( "Write a dist equation: dist = time * speed
\n" ); document.write( ":
\n" ); document.write( "Walk dist + run dist = 12 mi
\n" ); document.write( "2s + .5(2s) = 12
\n" ); document.write( "2s + 1s = 12
\n" ); document.write( "3s = 12
\n" ); document.write( "s = $\"12%2F3\"$
\n" ); document.write( "s = 4 mph is L's walking speed
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\n" ); document.write( "Check solution in dist equation
\n" ); document.write( "2(4) + .5(8) = 12 \n" ); document.write( "

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