The line plot above shows the distance in miles Luna runs each day. What is the difference in distance between the fewest miles
she ran and the most miles she ran in a day?
A) 2 1/2
B) 3
C) 4
D) 1/2
A) 2 1/2
B) 3
C) 4
D) 1/2
1 answer:
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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
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