Answer: 1:21
Step-by-step explanation:
We know that if they say students they mean both boys and girls so we add 11 and 10 to make 21 and since its, (COACH,) and then student we do 1:21 and not 21:1!
1/21
Step-by-step explanation:
First we need to figure out how many students are in the class.
10 + 11 = 21
Then we need to make a ratio
1/21
For every 21 students there is 1 coach
If you look at the question it says from coach to students so we do 1 coach to 21 students which is why 21/1 is wrong
Hope this helps can I have brainliest