document.write( "Question 940919: I don't really understand word problems like this:
\n" ); document.write( "Kate could do 10 jobs in 20 minutes and Ethan could do 15 jobs in 35 minutes. How long would it take both Kate and Ethan to do 30 jobs?
\n" ); document.write( "Please help me the best way possible. Thank you!
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Algebra.Com's Answer #573511 by MathLover1(20850)\"\" \"About 
You can put this solution on YOUR website!

\n" ); document.write( "if Kate could do \"10\" jobs in \"20\" minutes, then she could do at the rate \"+10jobs%2F20min=%281%2F2%29%28job%2Fmin%29\"\r
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\n" ); document.write( "\n" ); document.write( "and if Ethan could do \"15\" jobs in \"35\" minutes, he could do at the rate \"+15jobs%2F35min=%283%2F7%29%28job%2Fmin%29\"\r
\n" ); document.write( "\n" ); document.write( "Let \"t\"=amount of time it takes them to do jobs working together.\r
\n" ); document.write( "\n" ); document.write( "Together, they could do jobs at the rate of \"1%2F2%2B3%2F7=7%2F14%2B6%2F14=13%2F14\"\r
\n" ); document.write( "\n" ); document.write( "So our equation to solve is:
\n" ); document.write( "\"%2813%2F14%29t=30+\"....... multiply each side by \"14\"\r
\n" ); document.write( "\n" ); document.write( "\"14%2813%2F14%29t=30%2A14+\"\r
\n" ); document.write( "\n" ); document.write( "\"13t=420+\"\r
\n" ); document.write( "\n" ); document.write( "\"t=420%2F13+\"\r
\n" ); document.write( "\n" ); document.write( "\"t=32.31min+\"\r
\n" ); document.write( "\n" ); document.write( "\"t=32min+\"and \"18\"seconds would take both Kate and Ethan to do \"30\" jobs\r
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