Answer:
C 152
Step-by-step explanation:
Beacuse it is. Hope that helps
It’s b i’ve had this before
21 chaperones are needed for 420 students.
Step-by-step explanation:
No. of juniors = 148
No. of seniors = 272
Total = 148+272 = 420 students
3 chaperones = 60 students
1 chaperone = 
Ratio of chaperon to students = 1:20
Let,
x be the number of chaperons for 420 students.
Ration of chaperones to students = x:420
Using proportion
Ratio of chaperones to students :: Ratio of chaperons to students

Product of mean = Product of extreme

Dividing both sides by 20

21 chaperones are needed for 420 students.
Keywords: ratio, proportion
Learn more about ratios at:
#LearnwithBrainly
Answer:
I swear i thought you said 5 feet and 2 feet for a hippopotamus i was confused but i get it now
Step-by-step explanation: The hypotenuses is 13 :)
Answer:
D 35
Step-by-step explanation:
Just added them together