Ask Question
MathematicsMathematics
18 June, 23:36

krystal can wash a car in 16 minutes. sarawong can wash the same car in 15 minutes. If they work together how long would it take them?

+5
Answers (1)
  1. 19 June, 02:08
    0
    Krystal washes the car in 16 minutes, so she can wash 1/16 of the car per minute.

    Sara washes the car in 15 minutes, so she washes 1/15 of the car per minute.

    Together they would wash: 1/16 + 1/15 = 31/240 of the car per minute.

    To wash the entire car would be: 240/31 = 7.74 minutes (7 minutes 44.5 seconds)
Know the Answer?
Not Sure About the Answer?
Find an answer to your question ✅ “krystal can wash a car in 16 minutes. sarawong can wash the same car in 15 minutes. If they work together how long would it take them? ...” in 📘 Mathematics if you're in doubt about the correctness of the answers or there's no answer, then try to use the smart search and find answers to the similar questions.
Search for Other Answers
You Might be Interested in
At the start of the day there are 78 boxes of DVDs in a warehouse. Each box has 116 DVDs. Then 19 of the boxes are shipped. Now how many DVDs are left in the warehouse?
Answers (1)
1/3x+y=9, - 2x+2y = - 6 ... what is x and y, using the substitution method?
Answers (1)
You have 1 case of soap bars and there are 150 bars in a case. you have 300 bars of soap per day. how many cases do you need to order to have enough for 7 days
Answers (1)
A Student found the product of 5x10^8 and 6x10^5 to be 3x10^13. What is the error? What is the correct product?
Answers (1)
What is ten thousand more than 300,000 + 99,000+5,000+40 is somebody tell me the Answer
Answers (1)
New Questions in Mathematics
Mrs. Travis wants to have a clown deliver balloons to her secretary's office. Clowns R Fun charges $ 1.25 per balloon and $ 6 delivery. Singing Balloons charges $ 1.95 per balloon and $ 2 for delivery. What is the minimum number of balloons? Mrs.
Answers (1)
2 other decimal forms of 6.7
Answers (2)
Describe a general method for deciding which variable to eliminate when using linear combinations. can all systems be solved by linear combinations? Explain
Answers (1)
Janet hikes a trail at a local forest each day. The trail is 3.6 miles long, and she has hiked 5 days in the past week. How many miles has Janet hiked in the past week?
Answers (1)
the test scores for 10 students were 61,67,81,83,87,88,89,90,98, and 100. which frequency table represents this data set?
Answers (1)
Home » Mathematics » krystal can wash a car in 16 minutes. sarawong can wash the same car in 15 minutes. If they work together how long would it take them?
Sign Up Forgot Password?