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Mathematics 19 Online
OpenStudy (anonymous):

How do you solve- This year, 75% of the graduating class of Harriet Tubman High School had taken at least 8 math courses. Of the remaining class members, 60% had taken 6 or 7 math courses. What percent of the graduating class had taken fewer than 6 math courses?

OpenStudy (anonymous):

260% ,maybe

OpenStudy (anonymous):

no, not one ofthe options really wanna know how to solve understand concept of it

OpenStudy (btaylor):

so 25% of the students took less than 8. Of those, 40% took less than 6. So 0.25 x 0.40 = 0.10. So 10% of all students took less than 6 math classes.

OpenStudy (anonymous):

precentage of student,they had less than 8 math = 25% among them presentage of student,they had less than 6 math = 40% .'. percent of the graduating class had taken fewer than 6 math courses= 25% x 45% =10%

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