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Zigmanuir [339]
3 years ago
8

Sally can paint a room in 9 9 hours while it takes steve 4 4 hours to paint the same room. how long would it take them to paint

the room if they worked​ together?
Mathematics
1 answer:
aliya0001 [1]3 years ago
7 0
If it is 99 and 44 it would take 55 I guess but if it is 9.9 and 4.4 then it would 5.5 hours
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L: 1750, M:1750-480=1270
Lisa gave some stamps to Mark so Lisa now has 1750-x and Mark has 1270+x. Mark also has 3 times as many as Lisa now: (1750-x)*3=1270+x
5250-3*x=1270+x
4*x=3980, x=3980/4, x=995
So Lisa gave 995 stamps to Mark.
At first Mark had 1270 stamps. Lisa now has 1750-995=755 stamps.
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