A class has three fewer girls than boys. If the ratio of girls to boys is four to five, how many students are there in the class?

Greetings. I recently came across the problem: "A class has three fewer girls than boys. If the ratio of girls to boys is 4 to 5, how many students are in the class?" The answer was 27 students.

Step-by-step explanation:

brainliest pls

27

Step-by-step explanation:

Girls = boys - 3

girls / boys = 4/5

Substitute (boys - 3) in for girls

boys - 3 / boys = 4/5            Cross multiply

5(boys - 3) = 4* boys            Remove the brackets

5boys - 15 = 4boys               Subtract 5 boys from both sides.

-5boys          -5boys

- 15   = - boys                       Multiply both sides by - 1

15 = boys

Girls = boys - 3

girls = 15 - 3

girls = 12

Total 15 + 12

total = 27

1. sometimes

2. never true

3. sometimes

step-by-step explanation:

these are pretty self explanatory if you know what supp right and com angles are

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