How Do Jane and Terry Divide 10.35 Miles of Treadmill Exercise in 3.5 Hours?

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Discussion Overview

The discussion revolves around a problem involving the division of treadmill exercise time between two individuals, Jane and Terry, who walked a combined distance of 10.35 miles over 3.5 hours at different paces. The focus is on setting up equations to determine how long each person spent on their treadmill.

Discussion Character

  • Homework-related
  • Mathematical reasoning

Main Points Raised

  • One participant expresses confusion about how to set up the problem correctly, mentioning Jane's and Terry's walking rates and total time.
  • Another participant requests clarification on the problem statement, noting the absence of a question mark in the initial post.
  • A later reply provides equations for the distances walked by Jane and Terry, along with the total distance and total time equations, suggesting a method to express the equations in terms of one person.

Areas of Agreement / Disagreement

Participants generally agree on the setup of the problem and the need for equations, but there is uncertainty about how to proceed from the initial setup to finding the solution.

Contextual Notes

Participants have not yet resolved how to manipulate the equations to find the individual times spent on the treadmill, and there may be assumptions regarding the interpretation of the problem that are not explicitly stated.

DawnC
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This problem has me stumped

Jane and Terry used two different treadmills to exercise. The total distance waled between them was 10.35 miles. Jane waled at a pace of 4.9 per hour and Terry walked the pace of 4.5 per hour. Their total time as 3.5 hours.

This is how I would set it up, but not sure if it is correct

Jane - Rate = x, Time = 1, Distance = 4.9
Terry - Rate = x, time = 1, Distance = 4.5

After this - if this set-up is correct - I get lost in what to do next...
 
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I am also lost as to what to do next, because there is no question mark in your post... can you post the entire problem?
 
Bacterius said:
I am also lost as to what to do next, because there is no question mark in your post... can you post the entire problem?

Sorry - The question is : How long did each person spend on their treadmill?
 
Distances are in miles and time is in hours.

For Jane we have:

$$d_J=4.9t_J$$

And for Terry we have:

$$d_T=4.5t_T$$

We are also given:

$$d_J+d_T=10.35$$

$$t_J+t_T=3.5$$

You can use the latter two equations to express both of the first two equations in terms of one person. At this point you will have two equations and two unknowns...can you proceed?
 
Thank you
 

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