document.write( "Question 186893: When Kate exercises, she either swims or runs. She wants to spend a minimum of 8 hours a week exercising, and she wants to swim 3 times the amount she runs. What is the minimum amount of time she must spend doing each exercise? \n" ); document.write( "

Algebra.Com's Answer #140321 by jojo14344(1513) $\"\"$ $\"About$

You can put this solution on YOUR website!

\n" ); document.write( "Let $\"x\"$ = amount of time running
\n" ); document.write( "So, $\"3x\"$ = amount of time swimming (3 times that of running)
\n" ); document.write( "It follows-----> $\"x%2B3x=8hrs\"$ , EQN 1
\n" ); document.write( " $\"4x=8hrs\"$ ----> $\"cross%284%29x%2Fcross%284%29=cross%288%292%2Fcross%284%29\"$
\n" ); document.write( " $\"highlight%28x=2hrs%29\"$ , amount of time running
\n" ); document.write( "Also, $\"3%2A2=highlight%286hrs%29\"$ , amount of time swimming
\n" ); document.write( "Going back EQN 1:
\n" ); document.write( " $\"2%2B3%2A2=8hrs\"$
\n" ); document.write( " $\"2%2B6=8hrs\"$
\n" ); document.write( " $\"8hrs=8hrs\"$
\n" ); document.write( "Thank you,
\n" ); document.write( "Jojo
\n" ); document.write( " \n" ); document.write( "

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