Solutions to Seatwork/Homework

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Presentation transcript:

Solutions to Seatwork/Homework Work Problems Solutions to Seatwork/Homework

Liza can paint the kitchen in 5 hrs Liza can paint the kitchen in 5 hrs. David can paint the same kitchen in 3 hrs. If they work together, how long will it take to paint the kitchen? Rate Time Work done Liza 1/5 t t/5 David 1/3 t/3

Steve and Janet are going to paint the picket fence that surrounds their house. Steve can paint the fence alone in 12 hours. Janet can paint it alone in 9 hours. How long will it take them to paint the fence together? Rate Time Work done Steve 1/12 t t/12 Janet 1/9 t/9

Rodney and Thomas can build a cabinet together in 12 hours Rodney and Thomas can build a cabinet together in 12 hours. Rodney can build the cabinet alone in 16 hours. How long will it take Thomas to build the cabinet alone? Rate Time Work done Rodney 1/16 12 12/16 or 3/4 Thomas 1/x 12/x

Two pipes can fill a tank in 9 hours Two pipes can fill a tank in 9 hours. If the larger pipe fills the tank three times as fast as the smaller one, how long will it take the larger pipe to fill the tank alone? Rate Time Work done Larger pipe 1/t 9 9/t Smaller pipe 1/3t 9/3t or 3/t