Algebra
posted by Vice .
1) Mio can build a large shed in 15 days less than Yuuko can. If they build it together, it would take them 18 days. How long would it take each of them working alone?
M: Y:
2) A sink can be filled by a pipe in 6 minutes but it takes 12 minutes to drain a full sink. If both the pipe and the drain are open, how long will it take to fill the sink?

a)
ratecombined=rateM+rateY
shed/18 = shed/(timeY15) + shed/timeY
Y* (Y15)=18( Y + (y15))
y^215Y=36Y270
y^251Y+270=0
(y45)(Y6)=0
y=45, M=30
Respond to this Question
Similar Questions

math
4 men built a wall in 11 days. How long would it take 1 man to build the wall working at the same rate? 
college algebra
'A mason can build a wall in onehalf the time it takes an apprentice. Together they build the wall in 12 hours. How long would it take the apprentice working alone to build the wall? 
college algebra
a mason can build a wall in 6 hours less than an apprentice. Together they can build the wall in 4 hours. How long would it take the apprentice to build the wall? 
math
1.a collection of 105 coins consists of 1 peso and 5 pesos. if the total value is 205 pesos, find the number of coins of each denomination in the collection. 2.leslie's wallet contains 20 peso bills and 1 peso coins with a total of … 
math
john and mary are working on a job together. if john does it alone, it will take him seven days, while mary can do it alone in five days. how long will it take them to do it together? 
Algebra
It takes matt 9 hrs longer to build a wall than it takes chris. Working together they can build the wall in 20hrs. how long would it take each working alone to build the wall? 
college algebra
the following rational function gives the number of days it would take two construction crews, working together, to frame a house that crew 1 (working alone)could complete in t days and crew 2 (working alone) could complete in t+3 … 
Algebra, URGENT!!!
1) Mio can build a large shed in 15 days less than Yuuko can. If they build it together, it would take them 18 days. How long would it take each of them working alone? 
intermediate Algebra
Mio can build a large shed in 7 days less then yuuko can. If they build it together it would take them 12 days. How long would it take each of them working alone? 
math
A and B can do a piece of work in 12 days. They started to work together but A left after a few days. If B alone worked for 20 days, the whole work was finished in 24 days. How long would A take to complete the work?