I know how to do but not sure what teacher means by only writing one varible then

Michael

New member
pluggin in? write equation in one variable and then plugging in

Part 2: An application of a rational function is T = (AB)/(A+B), which gives the time, T, it takes for two workers to complete a particular task where A & B represent the time it would take for each individual worker to complete the identical task.

Estimate how long it takes you to complete a task of your choice (house cleaning, mowing, etc.) in a given week. Suppose that Joe is slower than you at the given task and takes three times as long as you do. If you work together, how long would it take you to complete the task?

Include the type of job, the time it takes you and Joe individually to complete the job, and the calculations needed to show how long it would take to complete the job if you worked together. Include units with your answer.

Can you explain "write equation in one variable and then plugging in" I can do the math but not sure what she means

please give an example equation in one varible and then plugging in
 
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