SOLUTION: Lea can groom the horses in her boarding stable in 5 hr, while Tran needs 4 hr. How long will it take them to groom the horses if they work together?
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Question 77719This question is from textbook Introductory algebra
: Lea can groom the horses in her boarding stable in 5 hr, while Tran needs 4 hr. How long will it take them to groom the horses if they work together? This question is from textbook Introductory algebra
You can put this solution on YOUR website! Lea can groom the horses in her boarding stable in 5 hr, while Tran needs 4 hr. How long will it take them to groom the horses if they work together?
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Lea DATA
Time = 5 hr/job ; Rate = 1/5 job/hr
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Tran DATA:
Time = 4 hr/job ; Rate = 1/4 job/hr
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Together DATA:
Time = x hr/job ; Rate = 1/x job/hr
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EQUATION:
rate + rate = rate together
1/5 + 1/4 = 1/x
9/20 = 1/x
x=20/9 (Time for both together to do the job)
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Cheers,
Stan H.
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