Solve by simplifying the problem. There are 18 students in Mr. Alvarez’s art class. Throughout the year, every student must pair
up with every other student to complete a project. How many projects will be finished?
A. 149 projects
B. 153 projects
C. 171 projects
D. 135 projects
1 answer:
18 students in the classroom.....one of them will be doing a project with each one of them. So, 17 students.
Result:
<span><span><span>18−17</span>/2</span>=<span>306/2</span>=153</span>
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