Okay, so we know a number of students and the amount of girls as a bracket. So what we have to do now is multiply them with each other.
28 *4/7 = 16
So there are 16 girls in Mr. Chang´s class.
You can also determine the boys by - the students with the girls:
28-16=12 boys
Have a nice day :D
Answer:
Javier rode bike 34 minutes before lunch.
Step-by-step explanation:
Let the number of minutes Javier rode the bike after lunch be = x minutes
Then according to question number of minutes he rode the bike after lunch

Total number of minutes he rode bike = 41 min
Therefore,

On solving

Divide both side by 6 we get

Number of minutes he ride before lunch
min
The full cost would be £33.75
If the goal of this question is to solve for x than the correct answer is 20. Hope this helped.