# Less than half of the students missed the chemistry demonstration. In fact only 3/10 of the students missed the demonstration. If 21 students did not miss the demonstration, how many students did miss the demonstration?

##### 1 Answer

Jun 14, 2017

9 students missed the demonstration

#### Explanation:

The given is that

Since we know that

Solving for

So there are a total of 30 students in the class. Using this value, we will able to solve for the number of students who missed the demonstration.

total no. students who missed the demonstration