SOLUTION: Betty and Karen have been hired to paint the houses in a new development . Working together, the women can paint a house in two-thirds the time it takes Karen working alone. Betty
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Question 950721: Betty and Karen have been hired to paint the houses in a new development . Working together, the women can paint a house in two-thirds the time it takes Karen working alone. Betty takes 6 hours to paint a house alone. How long does it take Karen to paint a house working alone?
Answer by josgarithmetic(39626) (Show Source): You can put this solution on YOUR website!
"Paint a house" is 1 job.
Rate of each person or specified combination of persons is in unit JOBS per HOUR.
WHO______________RATE(job/hour)
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Betty&Karen______
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Betty____________
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Karen____________
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Simplify the expression for their combined rate.
, Betty & Karen.
Their rate together is the sum of their individual rates.
Solve the equation for x.
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