Mathematics, 22.04.2021 23:30 leannaadrian
You can paint a certain room in 9 hours. Your brother can do it in 6 hours. How long does it take the two of you working together? Call x the number of hours it will take the two of you. Think about how much of the room you and your brother each can paint in one hour.
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You can paint a certain room in 9 hours. Your brother can do it in 6 hours. How long does it take th...
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