She will grade 17.5 projects in 7 hours at a rate of 2.5 projects per hour.
Step-by-step explanation:
Given,
Number of projects checked in 2 hours = 5 projects
2 hours = 5 projects
To find unit rate, we will divide the number of projects with number of hours
1 hour = [tex]\frac{5}{2}\ projects[/tex]
1 hour = 2.5 projects
7 hours = 7*2.5 = 17.5 projects
She will grade 17.5 projects in 7 hours at a rate of 2.5 projects per hour.
Keywords: unit rate, multiplication
Learn more about multiplication at:
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