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Ivan
3 years ago
12

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

Mathematics
2 answers:
denpristay [2]3 years ago
7 0

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.

coldgirl [10]3 years ago
4 0

Answer:

12 girls

Step-by-step explanation:

40 times .30

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