document.write( "Question 389489: It takes Jonathan 2/3 as long as it takes Juancho to paint a car. If together Jonathan and Juancho take 12 hrs, how long would it take Juancho to do the work alone? \n" ); document.write( "

Algebra.Com's Answer #276010 by josmiceli(19441) $\"\"$ $\"About$

You can put this solution on YOUR website!
Let $\"t\"$ = Juancho's time to paint a car
\n" ); document.write( "Then $\"%282%2F3%29%2At\"$ = Jonathan's time to paint a car
\n" ); document.write( " $\"1%2Ft+%2B+1%2F%282t%2F3%29+=+1%2F12\"$
\n" ); document.write( "multiply both sides by $\"t\"$
\n" ); document.write( " $\"1+%2B+3%2F2+=+t%2F12\"$
\n" ); document.write( "Multiply both sides by $\"12\"$
\n" ); document.write( " $\"12++%2B+18++=+t\"$
\n" ); document.write( " $\"t+=+30\"$
\n" ); document.write( "It takes him 30 hrs alone\r
\n" ); document.write( "\n" ); document.write( " \n" ); document.write( "

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