Answer:
6
Step-by-step explanation:
17/3=5.67
since you can't have 0.67 sack. you just round it up to 6
-1/3. Use the formula x1-x2/y1-y2
Answer:
1. 332
2. 177
Step-by-step explanation:
Answer:
Here c represents the total number of children in choir.
As per the statement:
Total number of boys in choir = 12
It is also given that: Three sevenths of a children's choir are boys.
⇒ Total number of boys = 
or

By cross multiply we have;
84 = 3c
Divide both sides by 3 we have;
c = 28
Therefore, the total number of children in choir is 28 children