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Working alone, it would take Shandra 40 minutes to sand a table. To sand the same table, also working alone, it would take Kelly 1 hour. If they work together, the situation can be modeled by the following equation, where t is the time it would take to sand the table working together.
StartFraction 1 Over 0.75 EndFraction + StartFraction 1 Over 1.25 EndFraction = StartFraction 1 Over time to complete together EndFraction
Shandra claims it will take them about 50 minutes working together, because 50 is the mean of 40 and 60. Which best describes Shandra’s claim?

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Answer: CCCCCC

Step-by-step explanation:

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It would take 24 minutes to sand the table working together.

What is an Equation?

An equation is used to show the relationship between two or more variables and numbers.

It would take Shandra 40 minutes (2/3 hours) to sand a table while it would take kelly 1 hour.

Let t be the time it would take to sand the table working together. Hence:

(1/(2/3) + 1/1)t = 1

(3/2 + 1)t = 1

2.5t = 1

t = 0.4 hours = 24 minutes

It would take 24 minutes to sand the table working together.

Find out more on Equation at: https://brainly.com/question/2972832

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