SOLUTION: `Ineed ur help on binomils, plz plz I am dying!Ryan can do a job in 12 days after he has worked for 4 days, he is joined by Sandy they finish the job together in 2 more days. how l
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Question 892942: `Ineed ur help on binomils, plz plz I am dying!Ryan can do a job in 12 days after he has worked for 4 days, he is joined by Sandy they finish the job together in 2 more days. how long will it take Sandy to do the whole job by herself?
Answer by richwmiller(17219) (Show Source): You can put this solution on YOUR website!
Ryan finished 4/12 =1/3 of the job in 4 days leaving 2/3 to be done
In two more days Ryan does 2/12=1/6 of the job.
So in 6 days, Ryan has done 6/12=1/2 the job.
Sandra does 1/2 the job in 2 days.
So she could do the whole job in 4 days.
2/12+2/s=2/3
1/6+2/s=4/6
2/s=3/6
2/s=1/2
4/s=1
s=4
http://www.algebra.com/algebra/homework/Rate-of-work-word-problems/Rate-of-work-word-problems.faq.question.286613.html
http://www.algebra.com/algebra/homework/Rate-of-work-word-problems/Rate-of-work-word-problems.faq.question.489288.html
http://www.algebra.com/algebra/homework/Rate-of-work-word-problems/Rate-of-work-word-problems.faq.question.715924.html
http://www.algebra.com/algebra/homework/Rate-of-work-word-problems/Rate-of-work-word-problems.faq.question.619220.html
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