Problema Solution
The number of hours it takes to paint a house is inversely proportional to the number of people painting. If it takes 5 workers 8.4 hours to paint a certain house, how long would it take 7 workers?
Answer provided by our tutors
Let 'x' represent the time 7 workers need to paint the house.
5*8.4 = 7x
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click here to see the equation solved for x
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x = 6 hr
7 people will need 6 hours to paint the house.