Question

Of the 40 students in Irene’s class, 30% are girls. How many girls are there in Irene’s class?

Answer 1

Answer:

The number of girls in Irene's class is 12.

Step-by-step explanation:

We can set up an equation.

Let x=the number of girls in Irene's class, and rewrite 30% as $\frac{30}{100}$, (simplified to $\frac{3}{10}$

$\frac{x}{40} = \frac{3}{10}$

Cross multiplying gives us

10x=40*3

10x=120

x=12

Thus, the number of girls in Irene's class is 12.

Answer 2

Answer:

12 girls

Step-by-step explanation:

40 times .30