document.write( "Question 478086: to stay in shape, julie goes running three times a week. on wednesday, she ran 3 mi less than on monday. on friday, she ran twice as far as she ran on wednesday. if she ran 21 mi altogether, how far did she run on friday. \n" ); document.write( "

Algebra.Com's Answer #327587 by josmiceli(19441) $\"\"$ $\"About$

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Let $\"x\"$ = The miles she ran on Monday
\n" ); document.write( "given:
\n" ); document.write( "On Wednesday, she ran
\n" ); document.write( " $\"+x+-+3+\"$
\n" ); document.write( "On Friday she ran
\n" ); document.write( " $\"+2%2A%28x+-+3%29+\"$
\n" ); document.write( "and
\n" ); document.write( " $\"+x+%2B+x+-+3+%2B+2%2A%28x+-+3%29++=+21+\"$
\n" ); document.write( " $\"+2x+-+3+%2B+2x+-+6+=+21+\"$
\n" ); document.write( " $\"+4x+-+9+=+21+\"$
\n" ); document.write( " $\"+4x+=+30+\"$
\n" ); document.write( " $\"+x+=+7.5+\"$
\n" ); document.write( "On wed:
\n" ); document.write( " $\"+x+-+3+=+4.5+\"$
\n" ); document.write( "On fri:
\n" ); document.write( " $\"+2%2A%28x-3%29+=+2%2A%287.5+-+3%29+\"$
\n" ); document.write( " $\"+2%2A4.5+=+9\"$
\n" ); document.write( "She ran 7.5 mi on Mon,
\n" ); document.write( "4.5 mi on Wed
\n" ); document.write( "9 mi on fri \n" ); document.write( "

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