Answer:
The elevation of Madras hometown is 0 ft ( representing the surface level elevation)
Step-by-step explanation:
Here, we want to get the elevation of madras hometown
From the question, we are told that Madras home town is 8 feet higher
-8 feet symbolizes a height that is below the surface
Adding 8 to -8 , we have an elevation of -8 + 8 = 0 feet
What this means is that the elevation is exactly at the surface
3600(total saving)/24(amount of months)=150(amount of dollars saved each month)
3600/24=150
First arrange the data in an order
3, 3, 3, 7, 7, 10, 10, 12, 12, 13, 14, 17, 17, 18, 21
a.) Q1 = (N + 1)/4th item = (15 + 1)/4 = 4th item = 7
Q2 = 2(16)/4 = 16/2 = 8th item = 12
Q3 = 3(16)/4 = 3(4) = 12th item = 17
IQR = (Q3 - Q1)/2 = (17 - 7)/2 = 10/2 = 5
b.) 82nd percentile = 82(16)/100 = 13th item = 17
c.) 12 is the 8th item which is in the middle of the data set, so the percentile rank is 50%
Rule of three
Pages %
204 → 136%
x → 100% (her goal)
x=204*100%/136%
x=150 pages
Answer: Rebeca wants to read 150 pages each day
Answer: 4y
Remark:
by the difference of squares identity, or formula.
