Question

At Southside Middle School, 30% of the students play an instrument. There are 310 students. How many students play an instrument? 93 students 130 students 217 students 290 studentsAt Southside Middle School, 30% of the students play an instrument. There are 310 students. How many students play an instrument?

Answer 1

OK, so I think you divide 30 by 310 which would be... 1 R 10 or fraction one and one-third 1 1/3
Does this help?

Answer 2

93 students

Explanation:

We need to calculate the 30% of 310 students.

We can calculate with a direct rule of 3. If the 100% is 310 students, how many students are the 30%?

`100 -\!\!\!-\!\!\!- \text{310 students}\\ 30 -\!\!\!-\!\!\!- \text{x students}`

We use the formula of the direct rule of 3:

`x = \frac {30 * 310}{100} \\ \\ x = \frac {9,300}{100}\\`

x = 93

93 students play an instrument at Southside Middle School.