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Komok [63]
3 years ago
5

Sally can paint a room in 9 hours while it takes Steve 5 hours to paint the same room. How long would it take them to paint the

room if they worked​ together?
Mathematics
1 answer:
KatRina [158]3 years ago
8 0

Answer: About 3 hours and 5 minutes to paint the room together.

Step-by-step explanation:

Sally can paint 1/5 of the room in an hour and Steve can paint 1/8 of the room in an hour.

Room/Hour

1/5 ± 1/8 =8/40  

8/40+5/40=13/40

How long to paint the room?

13/40 x 1= 40/13

40÷13=3.0777

So the answer will be Sally and Steve can paint the room in about 3 hours and 5 minutes

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Now we can compute the mean of these values, and that will be the best estimation we can make with the given data.

Remember that for a set of N values:

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3 years ago
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Bingel [31]

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