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romanbattistelli23
03.05.2021 •
Mathematics
Which expression can be solved for this?
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Ответ:
57.6 minutes .
Step-by-step explanation:
Given: A 6th grade math teacher can grade 15 homework assignments in 24 minutes.
To Find: If he works at the same rate, how long should it take him to grade 36 homework assignments?
Solution:
A teacher can grade 15 homework assignments in minutes = 24
She can grade 1 homework assignments in minutes =![\frac{24}{15}](/tpl/images/0797/3706/81833.png)
So, she can grade 36 homework assignments in minutes =![\frac{24}{15} \times 36](/tpl/images/0797/3706/2a9b1.png)
=![57.6](/tpl/images/0797/3706/df38d.png)
Thus it take 57.6 minutes to grade 36 homework assignments.
Hence a teacher can grade 36 homework assignments in 57.6 minutes .