Statistics & Probability Problem 5
Swimmers

In an eighth grade class of 360 students, 80% of the students can swim, 90% of the girls can swim and 180 of the boys can swim.

 How many boys are in the eighth grade?  Explain your answer and your thinking.


Math Scoring Guide
Download the Oregon Math Scoring Rubric 

Name: ________________________ Period: ____
Teacher: ______________________

Date: ___/____/___

CU - Conceptual Understanding 1 2 3 4 5 6

Comments:

PS - Processes & Strategies 1 2 3 4 5 6

Comments:

V - Verification 1 2 3 4 5 6

Comments:

C - Communication 1 2 3 4 5 6

Comments:

ACC - Accuracy 1     4 5  

Comments:

___ May be revised and returned for an improved score.