math

if wayne completed a task in one hour and sarah completed a task in two hours, how long will they take if they work together?

  1. 👍
  2. 👎
  3. 👁
  1. Every hour Wayne completes 1 task, and Sarah completes (1/2) task (simply take the reciprocal). Together, in 1 hour they will complete 3/2 tasks. Therefore, to complete 1 task, it takes them 2/3 hours.

    1. 👍
    2. 👎

Respond to this Question

First Name

Your Response

Similar Questions

  1. Math

    Each type of text has a purpose for the reader if you were looking to research penguins what type of text would u utilize A. textual B. functional C. recreational D. digital how is functional text useful in everyday life A. it

  2. algebra

    A can do certain task in 8 hours, B in 10 hours and C in 12 hours. How long will it take to do the task if A and B work 1 hour and then A and C finish the task?

  3. Accounting

    If Department H had 600 units, 60% completed, in process at the beginning of the period, 8,000 units were completed during the period, and 500 units were 30% completed at the end of the period, what was the number of equivalent

  4. Math

    1. In order to collect data on the signal strengths in a neighborhood, Briana must drive from house to house and take readings. She has a graduate student, Henry, to assist her in the task. Briana figures it would take her 12

  1. Math

    Jen was making cake pops for the bake sale. After 3 hours, she had completed half of the work. She called Maryna for help and together they finished everything in half an hour. How long would it take Maryna to finish the job alone

  2. Math

    A man can do a certain task in 21 hours, another man can do the task in 28 hours and a boy can do the task in 48 hours. Find how long it will take to do the task if all three work.

  3. Algebra 1

    Terry has completed 15 homework problems, and Susan has competed 9. Terry is completing 10 problems per hour and Susan is competing 12 problems per hour. After how many hours will terry and susan have completed the same number of

  4. Lesson 6 Principles of Management

    According to the job characteristics model, skill variety, task identity, and task significance combine to affect: knowledge of results, meaningfulness of work, responsibility for results, autonomy

  1. Statistics

    An experiment was designed to test a hypothesis that stated that high-drive subjects would be able to learn a simple task much more quickly than would low-drive subjects. The hypothesis further state that on a difficult task the

  2. Mathematics

    Twelve man take 6 hours to finish a piece of work. After the 12 men have worked for 1 hour, the contractor decides to call in 8 men so that the work can be completed earlier. How many more hours would 20 men take to complete the

  3. Math

    Plz help me understand this. I need to know how to do it. It took Khalid 90 minutes to complete 40 tasks. Which answer choice is an equivalent rate? A). 10 task in 0.9 minutes B). 10 task in 2.25 minutes C). 10 task in 9 minutes

  4. Math (Please help)

    . Sarah wants to arrive at her friend’s wedding at 3:00. The distance from Sarah’s house to the wedding is 95 miles. Based on usual traffic patterns, Sarah predicts she can drive the first 15 miles at 60 miles per hour, the

You can view more similar questions or ask a new question.