working alone, it would take shandra 40 minutes to sand a table. to sand the same table, also working alone…

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.$\frac{1}{40}+\frac{1}{60}=\frac{1}{t}$shandra claims it will take them about 50 minutes working together, because 50 is the mean of 40 and 60. which best describes shandras claim?○ shandras claim is correct.○ shandras estimate is too high because she should have found the differences instead of the mean.○ shandras estimate is too high because it will take them about 24 minutes.○ shandras estimate is too low because it will take them about 100 minutes.

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.$\frac{1}{40}+\frac{1}{60}=\frac{1}{t}$shandra claims it will take them about 50 minutes working together, because 50 is the mean of 40 and 60. which best describes shandras claim?○ shandras claim is correct.○ shandras estimate is too high because she should have found the differences instead of the mean.○ shandras estimate is too high because it will take them about 24 minutes.○ shandras estimate is too low because it will take them about 100 minutes.

Answer

Answer:

Shandra's estimate is too high because it will take them about 24 minutes.