Sweatshirts to school

Question

In glorias class about 25% of the students wore sweatshirts to school one day. If there are 29 students in her class, about how many students did not wear sweatshirts to school that day?

Answer 1

Since 25% of the students wore sweatshirts, that means that 75% of them did not wear sweat shirts.

We can determine how many students would be equivalent to 75% by multiplying 75% (in decimal form) by 29:

0.75 x 29 =21.75

This could be rounded to 22 students.

About 22 students did not wear sweatshirts.