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viva [34]
3 years ago
8

It takes Nate four hours to paint a wall, and it takes Jill seven hours to paint the same wall. About how many hours will it wil

l take if Nate and Jill work together to paint the wall?
Mathematics
2 answers:
Katyanochek1 [597]3 years ago
6 0
<span>Rate=1/time<span>
N=1/4 and J= 1/7
TotalN+J= \1/4 + 1/7 = 11/28

Then:
Time = 1/rate = 1/(11/28) = 28/11 hours = 2 6/11 hours= about 2.545 hours. </span></span>
weeeeeb [17]3 years ago
5 0
2.5 hours if my math is correct!

Hope this helps!!
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