Algebra
posted by Anonymous .
If it takes Mary 45 minutes to basic cleaning of her house, and it takes her daughter 65 minutes to do the same basic cleaning, then how many minutes will it take for them to clean together?
Can I please get help with ho to set the equation up?

Mary rooms /minute = 1/45
d rooms/minute = 1/65
together rooms/ minute = 1/45 + 1/65 = .0376 rooms/minute or 1/.0376 = 26.6 minutes per room
Respond to this Question
Similar Questions

MATH
FOUR CYCLISTS A,B,C&D WANTS TO CROSS A BRIDGE BUT DUE TO BAD CONDITION OF BRIDGE ONLY TWO AT A TIME CAN CROSS IT. IF A TAKES 1 MINUTES, B TAKES 2 MINUTES,C TAKES FIVE MINUTES & D TAKES 10 MINUTES TO CROSS THE BRIDGE, HOW THEY ALL CAN … 
Algebra
If it takes Mary 45 minutes to basic cleaning of her house, and it takes her daughter 65 minutes to do the same basic cleaning, then how many minutes will it take for them to clean together? 
algebra
How is this problem solved? It takes Bobby 60 minutes longer to wax the car than it does his brother Kevin. Together it takes them 50 minutes to wax the car. How long does it take each working separately? 
Marh
If there are 2 ferris wheels and one takes 6 minutes to go a full circle a round and the other takes 9 minutes to go around. And a person gets on each ferris wheel how many minutes does it take until they are both at the bottom at … 
Math
The time it takes to clean the house varies inversely with the number of people cleaning. If it takes 1 person 4 hours to clean the house, how long will it take 3 people? 
PreAlgebra
You and a friend work at an orange orchard. It takes you 40 minutes to pick all of the oranges from the tree. It takes your friend 60 minutes to complete the same job. How long will it take to pick all of the oranges from an orange … 
Math
Tom can clean the living room in 45 minutes. Wally can clean it in 30 minutes. Both start cleaning and 5 minutes later their sister Gigi joins them taking them 7 minutes more to finish. How long would it take Gigi to clean the living … 
Math
2 team's r cleaning highways it takes 1 team 5 minutes to clean 200 yards how many minutes will it take to clean 2 miles? 
Math
Working alone, it takes Leeann 30 minutes to clean the back yard. Mandy can clean backyard in 25 minutes . If they worked together how long would it take them to clean the yard? 
Math
Two riders, A and B leave the starting line at the same time. A takes 12 minutes to complete one lap and the B takes 18 minutes. How long in minutes after they will it take for them to meet again at the starting line?