the answer is either a whole number, a reduced fraction, or a decimal rounded to the nearest 10th.
1. it takes Todd 4 hours to pick a house and it takes Ted 5 hours to paint the same size house, how long will it take them to paint the house if they work together?
2. A plumber finds that Amos can complete a certain job in 10 hours and Brad can complete the same job in 7 hours. how long would it take them to complete the job if they worked together?
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Step-by-step explanation:
1. time together = 1/ ( 1/4+1/5)= 20/9 = 2 hours and 2/9×60minues 2 hours and 13 minutes.
2. time together = 1/ ( 1/10+1/7) = 70/17 = 4 hours and 7 minutes
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