Mathematics, 22.04.2020 18:04 momte
Kim can wash 150 window panes in 3 hours. Gary can wash 110 window panes in 2 hours. Kim and Gary work together to wash a total of 290 window panes. If they continue to wash at the same rate, how long will it take them to wash the 290 window panes? Give your answer in hours and minutes, to the nearest minute.
Answers: 3
![50+55=105\\[so together, they wash 110 windows.]\\\\290/110=2.6363636363\\[we can further simplify that to get the hours/minutes format you need:]\\2.63...\\ [turns into] 2\\[hours and] 38 \\[minutes.]](/tpl/images/0618/4475/b17b8.png)
________________________![2.63636hr=2[hr]+0.63636[hr]\\0.63636hr*60 [mins, 1hr]=38.182min\\38.182min=38min+0.182min\\0.182min*60s1min=10.92s\\10.92s=11s\\[Combining:] 02:38:11\\\\["s", "min" and "hr" are the seconds/minutes and hours.]](/tpl/images/0618/4475/7c9c9.png)
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Kim can wash 150 window panes in 3 hours. Gary can wash 110 window panes in 2 hours. Kim and Gary wo...
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