Posted by **Thabo** on Sunday, February 5, 2012 at 2:42pm.

In a school there are 122 grade 8s, 105 grade 9s, 134 grade 10s, 109 grade 11s, 90 grade 12s. Express Each Class as a percentage of the whole school.

- Math Lit -
**Ms. Sue**, Sunday, February 5, 2012 at 2:54pm
Add up the numbers to find the total number of students in the whole school.

Divide the number in each class by the total. Multiply the decimal answer by 100 to get the percent.

- Math Lit -
**Anonymous**, Tuesday, February 28, 2012 at 8:50pm
Decide whether the pair lines is parallel,perpendicular 3x+5y=6 ,3x+3Y=10

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