On Saturday, there were seven people chosen at random to fill out a survey about how much time they spend each week on the tread
mill. Their survey results are shown below on the data table. Use the table to compute the average amount of time spent on the treadmill on Thursday this week. Type a numerical answer in the space provided. If there is more than one answer, use a comma to separate your answers.
1 answer:
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Answer:
2.4 hours or 2 hours and 24 minutes
Step-by-step explanation:
Jack mows 1/6 of the lawn per hour while Marilyn mows 1/4 of the lawn together. Adding up those rates yields in their combined mowing rate:
The time required for them to mow the entire lawn is:
It would take them both 2.4 hours to mow the lawn together.