Asked by Sandra
If Dale can paint a room in 5 hours alone and Chip can paint the same room in 7 hours alone. How long would it take them together to pain the room?
Answers
Answered by
bobpursley
pieces= rate*time
1 room= (1room/5hrs+1room/7hrs)*time
= (7+5)/35 * time
time= 35/12 hours =2 hrs 55min
1 room= (1room/5hrs+1room/7hrs)*time
= (7+5)/35 * time
time= 35/12 hours =2 hrs 55min
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