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3 years ago

Boys to girls ratio is 2 to 3. There are 18 girls. What is total number of students

Mathematics

2 answers:

alexdok [17]3 years ago

8 0

$\frac{2}{3}=\frac{boys}{18}$

3*boys=2*18

3*boys=36

boys=12

12+18=30

total number of students: 30

kodGreya [7K]3 years ago

6 0

Answer:

30 students

Step-by-step explanation:

2:3 = x:18

X = number of boys

$\frac{2}{3} = \frac{x}{18}$

multiply 18 by both sides

18 × $\frac{2}{3} = X$

X = 18 × $\frac{2}{3} = 12$

18 + 12 = 30

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